Cú Chulainn (Lancer)

, Class Name , is the Lancer-class Servant of Bazett Fraga McRemitz in the Fifth Holy Grail War of Fate/stay night. He becomes the Servant of Kirei Kotomine after Kirei fatally wounds Bazett, and remains under his command for the duration of the War. Caren Hortensia acts as his Master during the events of Fate/hollow ataraxia.
Within the Moon Holy Grail War, he is summoned by Rin Tohsaka in Fate/EXTRA, battled in the Rani route. He contracts with Hakuno Kishinami in Fate/EXTELLA and Fate/EXTELLA LINK. He is one of the Servants summoned by Ritsuka Fujimaru of Grand Orders of Fate/Grand Order. He is the summoned in the Waxing Moon Ritual of Fate/Samurai Remnant, allying with Master Miyamoto Iori.
==Profile==
===Identity===
The , a hero from the of Irish mythology. He was a demigod, the offspring of a mortal woman, Deichtine, the younger sister of King Conchobar mac Nessa, and the deity, Lugh, the god who governed over the sun and a member of the Tuatha Dé Danann, the gods of Irish mythology. Deichtine, the daughter of a druid, Conchobar's father, and Maga, the widow of Ross the Red, disappeared in the Land of the Young without marrying anyone. There, she bore , the child of the sun god.
====Hound of Culann====
Sétanta was born in when it was still a land named after its abundant greenery, , meaning "green" in Gaelic. Receiving great divinity from his father, who possessed every skill such as knowledge, techniques, and magic, he exhibited superior talent from birth and boasted supernatural ability that separated him from ordinary people from a young age. The land was split into five countries, and he was sent with his uncle, Fergus mac Róich, to King Conchobar's army under the Northern kingdom of . He was to have a life that would follow the destiny to "one day become a shield of Ulster."
He took up the name Cú Chulainn after accidentally killing the protecting the house of master blacksmith . The guard dog was well-known to have the strength of ten men. The King was to take Sétanta with him after receiving an invitation to Culann's home, but Sétanta was in the middle of a hurling match with his friends. He would have lost the match had he withdrawn at that point, so he said, "I'll catch up after I win, so go right ahead." The King was humored the reply, and, allowing him to come late, went to the house first. Tragedy began after one of Culann's servants accidentally closed the gate.
Arriving late, Sétanta was attacked by "Culann's savage dog", well known as having the strength of ten men. He alone strangled it to death with his bare hands, and the people inside gathered at the gate after hearing the commotion. Upon learning that Sétanta defeated the guard dog, they were full of shock and admiration. There was some sadness in Culann's eyes at losing his prized guard dog, so Sétanta, ashamed of his actions told him "Does this dog have children? If he does, could you allow me to take care of them? I will raise them to be guard dogs just as strong as their father. Until then, I will be your guard dog."
Culann, impressed with the boy's offer responded to him with assurance that "I have no need of that. I will be the one to raise the dogs that will protect my manor. You, on the other hand, must train yourself. After all, you will one day be the guard dog of all of Ulster." All of the warriors at the scene nodded in agreement. Consequently, all began to call the boy "Culann's savage dog", Cú Chulainn in Irish Gaelic. The name praises not only his strength for killing the famous savage dog unarmed in his first battle and first time taking a life, but also for his character that thought of the owner of the lost dog even as a child.
He was still an apprentice warrior at the time, one in the training group for children wishing to become Knights of the Red Branch. He was around twelve or thirteen, though he claims it was just the adrenaline rush that allowed him to perform the feat. Honoring the noble declaration, he took up a Geis that says he must never eat dog. It was prophesied that "this child will live as a hero" at a young age, and it could be said that he was predestined to become a hero due to his divine parentage. After his name changed, the group of apprentices gathered around a druid, , asking in an uproar which of them would become famed warriors.
Cathbad was powerful, with his divinations being strong enough to "determine the future" rather than simply "see the future." Not knowing how to handle the situation, he decided that he would tell it to only those who would take up arms on that day. The divination was bad enough that none of them attempted to go through the rites of warriorhood, though Cú Chulainn was fishing while leaning against a hazel tree due to his disinterest. He went through the rites of warriorhood on that same day, and received the prophecy that said "in exchange for glorious deeds of valor, his life would be short." He readily accepted such a fate, smiling and laughing.
====Land of Shadows====
King Conchobar was enraged at him for becoming a warrior at his young age, causing Cú Chulainn's temper to also flare up. He smashed the spears of the castle and wrecked a chariot, responding with "Now try telling me one more time that I'm not strong enough to be a warrior." He was accepted into the Red Branch, but he claims there was not much in the title. He could do as he wished as long as he was not disloyal, allowing him to pick a fight with another land and then have a party the same night and forget all about it. There were many people causing trouble within the knights, so he would keep any eye on his own country more often than others.
He was often fighting as a warrior, and he fell in love with a princess, , the daughter of King , at first sight. He was enamored enough that he went to her castle to kidnap her, but she complained about not wanting to be with some nameless child. Only sixteen at the time, he went on a journey in search of fame. He journeyed to the "Land of Shadows" upon hearing of a powerful sorceress named Scáthach who had many warriors searching to be her apprentices. There were many warriors under her, and one, Ferdiad, a warrior of the neighboring country of , was his equal in competing for the demonic spear, Gáe Bolg.
They passed the vow of brotherhood, and though he has three priceless friends, Ferdiad held a special place in his heart as an older brother. With his incredible magic and unrivaled demonic spearmanship, he acquired the secrets of leaping, Gáe Bolg, and the original runes from her at the age of sixteen. She had said at the time he received the spear, "Perhaps, I wanted to be killed by your hands", while smiling with a serene voice like a prayer. She had been given a fate where even death was no longer in her hands. She then said, "I give up. Better die before that happens", laughing her same hearty laugh of which he had grown so fond.
Though he had arrived at the castle by the shortest route, she reflected, saying "If only you were born a little earlier... Young, still young..." He could only plan to leave as a lone man lamenting the woman he loved. He stayed there for a long time, feeling at home with his teacher and good rival. Aife, a lord of a neighboring country and in some versions of the legend, Scáthach's sister, started a war with them, and Scáthach did not allow him to take the battlefield. After arguing, he was eventually allowed to fight alongside them, and managed to capture Aife after a duel.
While they were hated enemies, he realized that he found her appealing, so he pursued her and was beaten by Scáthach for it. They eventually parted ways, and he asked that if she bore his child to name him Connla and send him to Ulster. He was to be given three vows to follow: "To not answer his name when asked", "To not change course", and "To not back down from a fight", the worst possible rules that could be given to his son. He and Ferdiad left the Land of Shadows on the same day, and he did not see Scáthach when they left because she had passed down everything to him and had nothing more to tell him.
He and Ferdiad each asked "How about coming to my country?" as they left the castle, each laughing at the realization that neither would budge from their position. He returned to Ulster, starting dramatic battles and becoming known throughout Ireland in an instant. With exploits unrepeatable by anyone else, he came for the princess as promised. He was opposed by King Forgall and his troops, but he annihilated them and also achieved victory for Ulster's knights. These battles mark the youth of Cú Chulainn, and his subsequent battles bear a heavy shadow.
====War with Connacht====
The neighboring country of Connacht eventually took up arms against Ulster. Queen Medb, part of a long line of warmongering ruling queens, was the type of person who hated to give up, so she marched forces after a number of events transpired around her. She invaded irrationally simply to steal , Ulster's golden bull, simply to beat her husband in a comparison contest. It started with Fergus defecting after the king had killed Fergus' sons out of lusting for young women. The pride of the Red Branch Knights began to serve Connacht out of hatred for Ulster's King, and that influenced Medb's aggressiveness.
There was also the factor of the curse affecting the people of Ulster that rendered men around the country too feeble to fight whenever they were invaded. Due to being born in a fairy mound rather than truly being born of Ulster, he was unaffected by the curse, allowing him to make part of his brilliant war record during the battles. He supported the weaker Ulster against her forces, an allied army of three countries. He spent every day slaying Medb's forces, and it eventually came to the point where they came to an agreement to change the war to a one-on-one fight as they began to lose.
Accepting several geas that would make him accept even his own ruin, one of which consisted of "fighting just one warrior a day", he forced the opposing country to take up geas unfavorable to them as well. It was set that they could only advance while he dueled one of their soldiers in the fords of the Ulster gorge. It was either lose five thousand men in one day, or only slightly advance at the cost of a single man, so Medb reluctantly agreed to it and started his series of duels. It began with Cú Chulainn's rune of vows, Ath nGabla, guaranteeing one-on-one combat with honor at stake.
Medb broke the conditions of the treaty and advanced. It was still a public vow, so it was only one unit that would not be noticed. It was still the best way of holding them back, but he had to deal with a number of issues. He had to fight a number of fine warriors and beings like the Clan Calatin monster, and he had to deal with other issues.Fate/hollow ataraxia - 10/08 - Streets - That past is already He is ashamed that he had to sleep for an entire day due to fatigue at one point, so the training group of the Red Branch had to save him and was slaughtered because of it. He blamed himself for their deaths.
Morrígan, the goddess who governed death and destruction, also appeared before him to offer her protection. He declined and she was insulted, so she transformed into many animals to go after his life. He was able to repel every attack, and he even went as far as treating the wounded Morrígan. She came to admire that nobility from the bottom of her heart, deciding to support him without his knowledge. She did not want to destroy his pride, so she decided not to help him when he was in his greatest perils and simply observed the way of a hero.
The fords were a land of death, and the conclusion to the war was likely the greatest of living hells in his life. It eventually came down to the strongest of the warriors of Connacht, the one man he never wanted to fight, Ferdiad. Their battle was not of Ferdiad's own will, but rather a scheme laid down by Queen Medb. Both had to serve their lords, so one life had to be discard to defend honor far more worthless than their friendship. They were equal in battle, resulting in the cornered Cú Chulainn having to utilize Gáe Bolg to pierce the heart of the man he loved as a brother.
Taking Ferdiad's life was the first time the demonic spear had seen battle since leaving the Land of Shadows, and it was released on his most precious friend. Holding his fallen brother in his arms, Ferdiad said his final farewell to Cú Chulainn, "Gáe Bolg is a glory given to only the most gifted of warriors. In that brilliant hall of learning, you were our pride." The battle ended with the defeat of Connacht, allowing the recuperated warriors of Ulster to pursue their army and add a great blow to the defeat. He had managed to hold out against them for seven years, and finally succeeded in making them retreat.
====Final days====
Cu confronting Medb and her armies.png|Cu confronting Medb's armies.
Cu tied to a tree.png|Cu tying himself to a post as he dies.
Though he captured Medb, he returned her to Connacht, not killing her or shaming her, but instead treating her as a Queen. Though it was not something he had planned, he never once killed a lord or a woman. He did not like killing women on the battlefield, and loving or hating them made no difference. There were no major battles after that point other than a strange young man coming down to the coast to stir up trouble. He beat any warrior who would speak to him, so the King declared that "Only Cú Chulainn can beat this boy."
Other than before his own death, that event marked the only time his wife stopped him, crying that "you mustn't go." There was nothing he could do to avoid a royal order, so the two met in battle at the coast. He was a strong opponent that forced him to utilize Gáe Bolg. The warrior said "She didn't teach me that" before dying, revealing his tutelage under Scáthach. It was then that it was revealed that his name had been Connla, Cú Chulainn's son. That marked the end of his golden years, as though he had become invincible, the sun still set for him.
Queen Medb had perceived her release as the greatest insult, vowing vengeance against him. As Celtic warriors had the custom of making geas, with those warriors who broke them being cursed, she utilized those of Cú Chulainn against him. She assembled warriors from the lands with grudges against him, and cornered him with many plots. He was forced to break his geas one by one, resulting in him losing his abilities. Ulster was once again beset by sickness, so he challenged the army of Medb single-handedly. Acting as the shield of Ulster and committing many deeds of valor, he had a life unexpectedly short in comparison to that valor.
He fell into scores of traps during the battle, and, battling furiously, he was eventually brutally killed and died pierced by his own magical spear. He would not allow himself to die lying down, and tied himself to up to a post. He saw an otter drinking the blood that had spilled into the river, and he died standing while laughing at its greediness. There landed a crow on the shoulder of his standing corpse in his death, said to have been the incarnation of Morrigan who continued to give him her unrequited love. Poetry and statues praising Cú Chulainn still remain to this day in Ireland.
===Appearance===
thumb|Cú Chulainn's earring.
Cú Chulainn is a blue-haired, red-eyed man whose primary outfit is a deep ultramarine full body tights covered in Runic protections, grey metallic pauldrons, and a metal plate over his lowest abdominal section. He wears his hair in a rattail that reaches his mid-back. He also wears a pair of silver earrings. Lancer gives off the impression of a beast, even carrying a bestial smell. 
In Fate/hollow ataraxia, Cú Chulainn usually wears a yellow Hawaiian shirt and black pants when he's not working one of his part-time jobs. In Today's Menu for Emiya Family, Cú Chulainn's casual outfit consists of a white T-shirt, black pants and a black jacket. According to Shirou Emiya, Cú Chulainn looks good in an apron.
In the Fate/EXTRA series, Cú Chulainn's outfit covers his entire body with light blue lined design, with some black sections, grey metalic pauldrons like his original design, and a light flame design on his left arm.
In Fate/EXTELLA, he has the following costume:
*
In Fate/EXTELLA LINK, he has the following costumes:
*
*
* (DLC)
===Personality===
Lancer is a fierce, but balanced warrior who enjoys combating a worthy opponent, but at his core he believes in justice and is easy to get along with. He is an agreeable youth acting out the role of one gentle in disposition yet strong in body. He has a playful attitude and takes a very carefree approach to life, but is quick to work himself into a frenzy during a heated battle. He was known as a brave, compassionate, and likeable young man in the legends. He mercilessly killed his enemies on the battlefield, but he respected faith and had the nobility to never once break a promise he had made.
He enjoys fishing, hunting, and hitting on cute girls. He is a proud warrior, someone who can't abandon a fight just because he's losing. He's ready to fight until the end, for the sake of his fighting will and also for his Master. He easily loses his cool, especially to insults calling him a dog.
He's not interested in killing innocent people, though he still strictly follows the rules of the war to kill bystanders like Shirou. He's very keen on his mission and somehow professional in his "work". He's noble and he can't really stand people who're joking with him or simply betraying his trust. He's also easily touched by others problems and if he chooses to protect someone, he will do his best till the very end. He really enjoys dating women or simply to spend his time in relaxing hobbies like fishing.
He regretted nothing in his life, though it was one full of wrong turns. There may have been disappointment, but he does not regret his life one bit. His spear only took away the lives of his loved ones, his close friend and son, but its only regret was that it had been meant to murder a single woman that he was unable to kill. Though it is impossible to swap one's life for another, he thinks saving Bazett from the looping world may allow him to leave the regrets of his youth behind. He only has a complaint about his fate as he tries to save her, that he never has any luck with good women.
====Relationships====
;Alternate Cú Chulainn
:Cu Chulainn likes to mock his Caster counterpart for being a "spearless me," believing himself to be superior to both him and Cú Chulainn Alter.
;Scáthach
:"Hey Master, Scáthach was my mentor, but...What is with this? Isn't she stronger than when she was in the castle? I mean, she's dual wielding Gáe Bolg! What's the point of me being here?"Fate/Grand Order - Cú Chulainn's My Room voicelines.
:Cu Chulainn respects his teacher, Scáthach, as demonstrated in his max bond quote in Fate/Grand Order. He also feels inferior to her and will tell his Master that he is not needed with Scáthach around, given that she can now wield three Gáe Bolg.
:The master he respects. ...Although, he secretly worries for her. “Really, is this woman gonna be ok like this?”. If this gets out, he’s totally getting ripped through pieces.
;Fergus mac Róich
:"Many thanks, Master. With Fergus here, our strength has gone up big time! Now, if my mentor were here, we would be unstoppable!"
;Medb
:Medb is responsible for Cú Chulainn's death but he does not appear to hold a grudge against her. He is more unhappy with failing to save a bunch of kids who fought against her in his stead, thus leading to their deaths.
;“She has always been a pain in the ass of a woman, but really? This much?”
;Celt Servants
:The elder brother figure Fergus is obvious, but he is also deeply tied with those whose generation (cycle) came after him, such as Fionn mac Cumhaill and Diarmuid. However, he does feel that they sure are somewhat more gentlemanly compared to those of his own time.
;Kirei Kotomine
:Cú Chulainn had been forced to serve as Kirei's Servant upon the murder of his original Master. Under the control of several Command Spells, Lancer had no choice but to obediently follow orders - even ones he did not agree with. At least two instances occur where Lancer openly defied Kirei: one time, he chose to fight Gilgamesh instead of killing Shirou, and another instance, he killed Kirei in order to save Rin.
;EMIYA
:Cú Chulainn despises EMIYA for being a fake hero who does not take pride in his achievements, and thus doesn't deserve to fight on the front lines like a warrior. Part of his motivation for helping Shirou in the Unlimited Blade Works (route) was out of spite towards EMIYA. In Fate/hollow ataraxia, the two spend considerable time together almost like friends. The Cu Chulainn of Fate/EXTRA is also acquaintances with No Name.
:"So, that bastard is here too. I'm talking about that Archer in red. No matter where I'm summoned I see his face. It's starting to feel like fate? Ugh, I hate it."
;About time to settle the matter for good. Aggressively.
;Rin Tohsaka
:Cú Chulainn admires Rin and enjoys teasing her whenever he can. In the Unlimited Blade Works route, Cú Chulainn is tasked by Kotomine to keep her safe, a task he openly enjoys until he discovers Kotomine wants Rin kept alive so he can kill her later. Cu Chulainn immediately rescues Rin from both Kotomine and Shinji. He also expresses a desire for her to become his Master. This wish is fulfilled in Fate/EXTRA, in which Cú Chulainn is the Servant of another Rin Tohsaka.
;Archimedes
:As a long-time veteran of SE.RA.PH’s Holy Grail Wars, he is acquainted with Archimedes from past encounters. Although it seems like they wouldn't get along -- Cu Chulainn being something of a jock-type to Archimedes’ studious-type -- the two have a good relationship. As a warrior, Cu Chulainn recognizes and respects Archimedes’ ruthless side. Due to the nature of their relationship, if he were to discover that Archimedes had plotted against humanity, Cu Chulainn would accept it with a passing remark like, “Oh...yeah. He’d probably do something like that.”Fate/EXTELLA material - Encyclopedia: Cu Chulainn, p.106
==Role==
===Fate/stay night===
Lancer was originally summoned by Bazett Fraga McRemitz, an Irish representative of the Mage's Association. She used Cú Chulainn's rune stone earrings as the catalyst and he responded to the summoning solely because he wanted to engage in a valiant fight to the death but this simple wish was never granted to him. However, Kirei Kotomine betrayed Bazett and severed her left arm to obtain her Command Spell, leaving her almost dead. He then used her stolen Command Seals to gain the allegiance of Lancer and enter into the 5th Holy Grail War. Despite his wishes to avenge his fallen master, Lancer was forced to bend to Kotomine's will. Lancer is disgruntled at having to serve a Master who uses such cowardly tactics, but he is forced to obey Kirei's wishes.
Kirei chooses to employ a passive strategy regarding Lancer. He has Lancer go out on reconnaissance, and scout the locations and identities of other Masters and gauge how dangerous their Servants are. During his fight with Archer, Lancer noticed that Shirou Emiya had witnessed his entire battle. Believing Shirou to be an ordinary human, to preserve the secrecy of the Holy Grail War, Lancer silences Shirou by stabbing him through his heart.
Later, Lancer realizes that Shirou has recovered from his mortal wound, so he tracks and corners the young mage within the shed of his home estate. Before Lancer is able to strike a mortal blow, Shirou is rescued by the recently summoned Servant, Saber, who then engages Lancer in combat. Outmatched, Lancer flees the scene just before the arrival of Archer and his Master.
After this, for the majority of the story, Lancer is generally inactive.
====Fate====
In Fate, Shirou is lured to Kotomine's church, and once again wounded by Lancer. Saber eventually arrives to rescue Shirou. After events unfold, Kotomine reveals his other Servant, Gilgamesh, the Archer from the previous war. Kotomine orders both of them to kill Saber and Shirou, and leaves. Lancer, disgusted by Kotomine keeping Gilgamesh's existence a secret from him, and by Gilgamesh himself, decides to rebel against Kotomine. Though he claims he is doing it out of hatred for Gilgamesh and Kotomine, and not to help them, Lancer chooses to fight Gilgamesh and thereby aids Shirou and Saber in escaping. He survives against Gilgamesh for half a day, but is ultimately defeated.
In the anime version of the Fate route, Gilgamesh quickly binds Lancer using the Chains of Heaven and kills him using Caladbolg.
====Unlimited Blade Works====
In Unlimited Blade Works, after being driven out of his church by Caster, and faking his death, Kotomine orders Lancer to cooperate with Shirou and Rin. Lancer helps them with their plan to defeat Caster by fighting Archer to distract him, so that Rin and Shirou are able to enter the church. Ostensibly defeating Archer, but choosing not to conclude their battle, he later reappears to offer his aid again to Shirou and Saber after Rin is captured. Upon rescuing Rin, Kotomine suddenly appears and orders Lancer to kill Rin. In addition to his previous disgust with Kotomine, Lancer has come to admire Rin, and therefore refuses his order. In response to this, Kotomine uses a Command Seal to force Lancer to commit suicide. Lancer manages to get back up and survive long enough to kill Kotomine, stop Shinji from harassing Rin, free Rin from her restraints and set the Einzbern castle on fire.
====Heaven's Feel====
In Heaven's Feel, upon sensing a disturbance at the Ryuudou Temple, Lancer investigates it as per his orders by Kotomine to scout the competition. He discovers and engages in battle with True Assassin, but during the battle, he is attacked and killed while his heart is consumed by the True Assassin; then his body is absorbed by the black shadow of Avenger and Sakura Matou. 
In Fate/stay night - Heaven's Feel I. presage flower, he becomes the third Servant after Assassin and Caster respectively to be killed by True Assassin and absorbed into the Shadow.
===Fate/hollow ataraxia===
Fate Hollow Ataraxia Bazett and Lancer.JPG|Bazett and Lancer
Fate Hollow Ataraxia Lancer fishing.JPG|Lancer fishing.
Fate Hollow Ataraxia Lancer witness battle.JPG|Lancer witnessing the whole battle.
In Fate/hollow ataraxia, Lancer's role is expanded far beyond Fate/stay night. He is normally spotted fishing at the Fuyuki docks, but he is frequently seen wandering the city or at his part-time job as a grocer. He is quite amiable, chatting with many of the former Holy Grail War participants, and is well liked. Nearly every female character in the game is subject to a pick-up attempt (or in Shirou's words, "harassment"). These attempts tend to work out well, thanks to not downplaying his Servant qualities. However, in the end things generally turn out differently, leaving Lancer annoyed and/or embarrassed and the girl(s) in question safe from the grasp of the Blue Panther. He makes no attempt to combat the Shadow Wolf Beasts during the Fuyuki eclipse, instead quietly presiding over Avenger's ascent into Heaven's Feel from a distance.
===Fate/unlimited codes===
LancerUCopening.jpg|Opening
LancerUCending.jpg|Ending
In Fate/unlimited codes, he is known as the .
In his story Lancer rushed back to protect Bazett but he finds her murdered by Kirei. Kirei has stolen Bazett's command spells and became Lancer's new Master. Lancer was disgusted with the idea of working together with Kirei and suggested him to use a Command Spell to force him to submit to him.
He encounters Caster at Ryuudou temple, Caster observed Lancer earlier and she can tell that Lancer is displeased with his new master Kirei. She suggested to work together so she can break Lancer's contract with Kirei. Lancer rejected the idea because of his loyalty of a knight, he claims that by changing sides, it is hard to maintain respect of others. Caster insults Lancer by calling him the "Hound of Culann" and the battle starts. Before Lancer kills Caster, they had a deal and Caster used Rule Breaker to cancel the contract.
His final opponent is Kotomine. Kotomine was confused about how his command spells are not working on Lancer. Lancer revealed the truth to Kotomine about his reason for him to continue the Holy Grail War without a master, to avenge Bazett who believed in Lancer and his abilities. Kotomine finds this absurd for doing this for a dead woman and he can tell Lancer that he's going to fade away soon. Lancer confirms that his body can stay for a few minutes and killing him will only take that amount of time. Lancer doesn't have a wish for the Holy Grail and revenge is all he needs and kills Kotomine. In the end, he starts to fade and recounts his time in the Holy Grail War. He admits that Kotomine is strong and regrets not fighting alongside Bazett in the war but he is content with avenging her death. He announce he doesn't have a wish for the Holy Grail and he's happy enough to fight in flesh once more. He thanks Bazett for summoning him before fading away.
===Fate/tiger colosseum series===
LancerTCending.jpg|Lancer's Ending
AssassinTCending.jpg|Assassin's Ending
===Fate/Grand Order===
====GUDAGUDA Honnouji====
Cù Chulain appears in the singularity under the name Shimazu Setanta, wondering why he's teamed up with Chousokabe Emichika and Mouri Medinari. Calling the situation a pain, Shimazu senses Ritsuka's group coming, and asks Mouri if she has a plan. He agrees with her plan to lure the group, but he's irritated that he's only there with a childhood name. After Mouri tells Chousokabe to ambush the group when Shimazu lures them, he asks what she is going to do. Hearing Mouri's answer that she won't be fighting, Shimazu merely answers that he wants to get started. Encountering the group, he lures them to where Chousokabe is able ambush them with his arrows. Delighted by the success of her plan, Mouri tells Shimazu that she'll buy him some bread later, but he complains that he wants something with yakisoba in it. He then tells the group that they were careless since the ambush was obvious when he ran away earlier. However, when Shimuza says his given name along with his allies, he and the others are defeated by an enraged Okita after she donned her Coat of Oaths. After he is defeated, Shimuza apologizes to his mentor before disappearing.
==== Summer Event: Chaldea Summer Memories ====
Cú Chulainn and several other of Ritsuka’s Servants are accidentally rayshifted to a remote island where they’re unable to contact Chaldea. While everyone waits for Blackbeard's observation report of the island, Scáthach offers to spare with Cú Chulainn to pass the time. He declines, believing he will only be killed. Furthermore, he reminds his mentor that the island isn't the Land of Shadows, where violence rules, and she should adapt to the situation. After Scáthach accepts he is right, Cú Chulainn goes fishing.
Eventually, everyone learns from a near-dead Blackbeard that their location is still unknown, and it’s nearly impossible to leave by ship. After Scáthach alters the girls' Spirit Origins to give them swimsuits to accommodate their current environment, Cú Chulainn agrees with Fionn mac Cumhaill that the men should do their best not to stand out. He then looks over to Scáthach in her swimsuit, noting how she pretends to be calm while excited more than anyone. He also says she didn't need to change as her combat outfit was already water-resistant. He then decides to stay away from the beach and go into the mountain.
At some point, he, Fionn, and Diarmuid Ua Duibhne founded a secret village for the men.
Cú Chulainn later goes fishing joined by Ritsuka, Mash, Marie Antoinette, and Tamamo-no-Mae. He notices Marie catching fish and throwing them back in. It is as if the fish come willingly to get caught, which makes Cú Chulainn wonder if being unselfish is the secret to fishing after all. He and the others then help Marie reel in what turns out to be a monster, which they promptly slay.
Afterward, Cú Chulainn takes Ritsuka and Mash hunting, joined by Anne Bonny, Mary Read, and Artoria Pendragon. Cú Chulainn spots a deer on the lee of a nearby mountain. Artoria tries to use Excalibur to get it until Ritsuka stops her. Reprimanded by Cú Chulainn, she explains destroying the surroundings as one way to get at prey when they hide in difficult places. She assures though she only does so when needed and asks Cú Chulainn if she is somehow breaking Celtic hunting etiquette. Cú Chulainn answers her method goes beyond simple etiquette. Banning the usage of Noble Phantasms, the group continues with their hunt. Cú Chulainn didn't take part, though, because he sniffed out some wyverns.
Cú Chulainn later learns that Fionn and Diarmuid were killed by a boar. But, instead of joining the hunt for the boar, he decides to protect the home base. Mary felt his eyes were saying it would bring great shame to Diarmuid and Fionn if a fellow Celtic male were to defeat the boar.
If the zen garden is built, Cú Chulainn finds Ritska, Mash, Scáthach, and Saski sitting around drinking tea and staring at the garden. Scáthach tells him to stare at it until he sees what it isn't seen, saying it could be a way to kill her.
When Sasaki Kojirou brings Ritsuka, Mash, Martha, Kiyohime, and Tamamo-no-Mae to the men's secret village after he was defeated, Cú Chulainn accepts it was only a matter of time before it was discovered. He then explains how the village was founded as a secret place for men since they get nervous seeing the girls in swimsuits all the time. Ritsuka asks if the village has a name. Cú Chulainn answers it is called Backspear Village in honor of Fionn and Diarmuid. Ritsuka realizes the name is a twist on a similarly named boy band, to which Cú Chulainn jokes they'll make great tunes if Karna were to go wild on the bass. He then spouts some nonsense about how they're the summer edition of Backspear and that they'll be burning the charts all summer long.
If the samurai residence is built, Cú Chulainn feels like it is a good place to ready his spear for some reason. If the iron fortress is built, a giant iron sphere rolls toward him.
He later helps defeat the giant demon boar when it appears as construction for the escape ship is nearly complete. After the giant demon boar returns and is seemingly killed, everyone boards the ship and sets sail. Cú Chulainn decides to join Sasaki in a game of hanafuda in his cabin, feeling he played it before.
==== Summer Event: Chaldea Heat Odyssey ====
During a storm, however, the men are thrown overboard. Cú Chulainn eventually washes back on the island after 2,000 years had passed there. He then made his way to the city ruins, where he reunited with Ritsuka and the girls. Impressed by his survivability, Scáthach tells him to kill a hundred demon boars, which Ritsuka and Mash will help with.
Along the way, Mash informs Cú Chulainn that they're on the same island as before 2,000 years into the future. Cú Chulainn asks what the island was like originally, but Mash isn't able to answer. Eventually, the three encounter and slay many demon boars, but they have trouble with the giant one. Beowulf appears, though, and easily kills it. He apologizes for stealing their kill, but he needs the meat for his underlings. Said underlings are demon boars he managed to tame with his fists. Cú Chulainn asks him if he's their enemy, to which Beowulf replies that he isn't their ally. He then leaves with giant demon boar after declaring he wants to take over the world. Ritsuka, Mash, and Cú Chulainn then return to the others and inform them about Beowulf.
If the red bridge is built, Cú Chulainn and Artoria will both find it familiar.
Later, Thomas Edison, who gave the boar piglets electricity 2000 years ago, is woken from cryosleep by Ritsuka, Mash, Scáthach, Artoria, and Mordred. The group learns he needs the Holy Grail to build an escape device to contact Chaldea.
Completing more construction projects, the group goes to the demon boars’ lair as they likely have the Grail. As they near their destination, they notice many demon boars guarding the cave. Since the demon boars outnumber them, the group goes with Mordred’s plan to break through the enemy line and hold them off so Ritsuka, Mash, Scáthach, and Edison can enter the cave.
After the escape device is built, the group leaves the island. As they do, they're contacted by Romani Archaman. They learn they were only gone for an hour before rayshifting back to Chaldea.
==== GUDAGUDA Meiji Restoration ====
He appears under the name Gotou Setanta as one of the Servants summoned by Andras to serve Oda Nobukatsu. He is annoyed that he is again partnered with EMIYA and Medea, who appear under the names Sanada Emiyamaru and Mouri Medinaga, respectively. Though he dislikes they have to let Chacha be sacrificed, he does feel a sense of pride in defending the Sun Fortress. Ritsuka's party defeats him and Andras' other Servants.Fate/Grand Order - GUDAGUDA Meiji Restoration, Section 5: The Secret Emiyamaru
==== Valentine Event The Bountiful Chocolate Gardens of Valentine ====
Cú Chulainn helps plant cacao trees to produce more chocolate. Though he doesn't care for chocolate or Valentine traditions, he understands it is best to get chocolate for those women who become unwound during Valentine's. He worries what the possible replacement for chocolate could be, particularly when it comes to Medb. Medb appears and thinks Cú Chulainn was saying that her trying to entice him with chocolates is annoying and futile. She, therefore, changes her method to smacking him in the face with her chocolates, so he'll physically get the message. Annoyed, Cú Chulainn decides to leave and orders Diarmuid to make scarecrows with the materials he got from the warehouse
Later, he, Diarmuid, Vlad, and Karna find themselves unable to harvest cacao plants crossbred with mandrakes thanks to its scream. Semiramis told them the plants must be harvested today, as they'll likely wilt by tomorrow. Cú Chulainn go gets Nero Claudius and convinces her to sing by saying music helps plants produce a greater yield. With Nero's song countering the screams of the cacao mandrakes, and their ears protected by runes, the Lancers are able to her harvest the plants. Everyone soon finishes and Nero leaves, satisfied that she could help. Karna however points out that they have another field to harvest. Cú Chulainn leaves to go get Elizabeth Bathory..
==== Summer Event: Servant Summer Festival! ====
While doing handicrafts, Cú Chulainn is suddenly summoned to the beach by Medb to her partner in her volleyball match against Ritsuka's party. She loses and gets upset at Cú Chulainn for not playing dirty. Cú Chulainn asks her why he’d ruin sports by cheating. Medb concedes that he’s right, admitting that she hates losing. Cú Chulainn tells her that losing every now and then is good since it keeps one focused. He then leaves, saying he'd like to try baseball next time.
In the final loop, he, Astolfo, and Ibaraki-douji hold off Medb's chariot so Ritsuka and Jeanne Alter can get to the convention center unimpeded. 
====Interlude====
===== The Taboo =====
Cú Chulain is brought to a forest in Britannia to kill a demonic boar, which he believes someone more suited should kill. He agrees to take on the task, then after killing stray homoculi, he tracks down the boar. However, the group discovers that the boar had already been killed by a chimera. After killing the chimera, the group discovers a poorly concealed mage's workshop, which was the source of the homunculi and the chimera. Cù Chulain then cooks the remains of the boar and the chimera, but he leaves when he believes that a dog was used to create the chimera.
===Fate/EXTRA===
File:Rin and Lancer.jpg|Rin and Lancer
He is the Servant of Rin Tohsaka, and he is fought as an opponent during the Rani VIII route.
He is first encountered in the Elimination Round against Berserker. When the battle turns in favor for Lancer and Rin, Rani VIII decides to commit by overloading her magic circuits and explode the whole arena. Lancer is impressed with her commitment but Rin orders Lancer to impale her heart before she explodes. Hakuno Kishinami teleports to the arena thanks to a Command Spell. In the Rin route, as Rani was about to explode, Lancer sacrifices himself to save Hakuno and Rin. In the Rani route, as Hakuno's Servant fights against Berserker, Lancer uses Gáe Bolg to impale Rani's heart.
Rin and Lancer would be Hakuno's opponent in the sixth round, however, they hacked the notice board so that Hakuno wouldn't know the opponent. In the arena, an unknown enemy later revealed to be Lancer was following Hakuno and the Servant with killing intention till Lancer retreated to avoid cofrontation. The next day, Lancer once again tries to kill Hakuno by luring them to the arena and use a combination of his Runes and his Noble Phantasm to kill them from a distance at the school. However Rin stop him and a large detonation was found in the arena entrance. In the second level, Rin uploads Lancer's data into an effigy. Once Rani transfer the Anti-Lancer Firewall Bypass, the effigy is easier to defeat. By defeating it, they learnt both the class and noble phantasm of Lancer. After the elimination battle with Hakuno, Lancer apologizes to Rin for failing her, though Rin blames herself for being a weaker master.
In the manga adaption, he fought against Lancer in the preliminaries round. When Hakuno ask Rin for help, Alice and Caster sent both of the master and servant to a different environment. Alice and Caster summons Jabberwock to fight, Saber and Lancer temporary join forces. No matter how much they damage Jabberwock, it regenerates causing them to think of retreat. Rin uses one of her Command Spells to force Lancer out of his limits to break a hole in the barrier to escape.
====Last Encore====
Lancer_vs_Berserker.png|Lancer vs Berserker
Lancer is first mentioned, albeit not by name, when his Master Rin Tohsaka informs Hakuno and Saber that she is a former Master who has "lost her Servant", meaning Lancer. Despite this, Rin still possesses her Command Spells, leaving Lancer's fate ambiguous.
It isn't until Hakuno and Saber finally reach the sixth floor where Rin and Rani are that they discover Lancer had died in a mutual kill with Berserker long ago, right before the Moon Cell shut down, leaving no winner for the sixth floor.
Rin, or copies of Rin, were subsequently turned into a Demi-Servant that possessed Lancer's power and could use Gae Bolg.
===Fate/EXTRA CCC===
Lancer is one of the bonus bosses of the game, paired with Kotomine as his master.
===Fate/EXTELLA===
Cú Chulainn returns as a selectable playable character for Hakuno Kishinami. He is in Nero Claudius's party along with Nero, No Name, Gawain and Li Shuwen.
====Flame Poem====
Cú Chulainn is introduced by Nero as one of her generals. He recognizes Hakuno from the Holy Grail War, and asks they rely on each other despite formerly being enemies. When Nero orders him and others to return to their posts, he asks her why Hakuno sits on the throne even though she wears the Regalia. Satisfied with her answer, Cú Chulainn leaves asking Hakuno to call him if they need anything. He later helps repel the invasion of Mare Aurum. Next day, he joins in conquering Mare Mellum.
A couple days later, as Nero prepares to wage war against Altera, Cú Chulainn warns her to be overly confident given Altera's strength. He explains he briefly fought Altera, but retreated when he realizes how powerful she was. He reports that while Hakuno and Nero were resting from their victory over Tamamo no Mae, Altera's forces conquered 80% of SE.RA.PH in half a day. He continues that he and the other generals sealed off the remaining 20% from the rest to prevent Altera's forces from invading Mare Aurum. He also reports that Iskandar is one of Altera's generals.
When Hakuno and Nero prepare for their final battle against Altera, Cú Chulainn states he'll fight whatever enemy Nero commands him to.
====Orchid Words====
Cú Chulainn aids Nero and Nameless in conquering Mare Mellum against Tamamo's army, but they're ultimately defeated.
====Dawn====
Cú Chulainn is ordered by Nero to fight Altera in Mare Mellum in order to weaken her. He later aids in defending Mare Aurum, but he's defeated.
====Golden Poem====
Cú Chulainn repeats his introduction from the first timeline but omits any mention of the Grail War. When Nero reveals Velber and Archimedes are the true enemy, he says it doesn't make sense to waste time fighting Tamamo's forces. He also knows though that they would conquer Nero's territories rather than negotiate, which Li Shuwen and Gawain agree with. He is impressed by the Regalia's seach function's ability to identify the enemy Servants, but he also knows it make the battle any easier.
After Nero and Tamamo ally with each other, Cú Chulainn and Li Shuwen scouted out Altera's forces. During the meeting between the generals, he isn't concerned about the lack of Attack Programs on their side since he and others can easily destroy any enemy programs. He talks about how he and Li Shuwen scouted Altera's forces, and reports Top Servants are among Altera's forces. He agrees with Nameless that the Altera's forces are protecting something in the Zero Dark if they have a base there. He also finds it strange they didn't reveal themselves until Nero and Tamamo stopped being enemies. Late into the meeting, Cú Chulainn demands to know what Hakuno's plan is since negotiation isn't possible. He later joins in defeating Altera's forces in Mare Origio.
The next day, Cú Chulainn takes part in assaulting Mare Carer. He is last seen fighting Velber corrupted Attack Programs alongside Li Shuwen. The two stop though when the programs cease to function with the Ark of the Star's destruction. Cú Chulainn is disappointed the fighting stopped though, as it was just getting good. Though he understands how he feels, Li Shuwen tells Cú Chulainn to not complain since Nero has been victorious.
====Side Story====
In his side story, Cú Chulainn is eager to charge into battle for the fun of it. In his first mission, he is assisted by Nameless, much to his own disgust. He is further disgusted by Elizabeth Báthory's singing, and is in complete disbelief that she was actually singing and not intentionally grating his ears. After defeating Elizabeth and recapturing Nero's territories, Cú Chulainn reprimands Elizabeth harshly and gives her a bit of advice on what singing really is.
In the next battle, Cú Chulainn excitedly enters the battlefield with Nameless at his side again. He successfully disables Medusa's Blood Fort Andromeda and defeats Medusa herself, but he chooses to spare her because he doesn't like hitting women. He promises that he will spear Medusa in the heart if they cross paths on the battlefield again. When Medusa asks why Cú Chulainn chose to side with Nero, he admits that it's partly because Tamamo-no-Mae reminds him of Medb.
After the revelation of a "Force of Destruction" threatening the stability of the whole of SE.RA.PH, Cú Chulainn expresses eagerness to find out what kind of Servants the Force possesses. He tells Nameless that he himself is the best choice for taking part against this new enemy and Nameless, surprisingly, agrees. This disturbs Cú Chulainn somewhat, who expected a sarcastic comment. The lack of one prompts him to realize that the situation is really dire. However, he succeeds in defeating Jeanne d'Arc and reclaiming the territories she had taken.
Cú Chulainn tries to get Jeanne to speak afterwards but Jeanne remains silent. Gilgamesh then shows up to reprimand Jeanne for losing to the "mongrel." He gets offended by the nickname, and starts exchanging insults with Gilgamesh. His side story ends with him and Gilgamesh initiating a battle off-screen.
===Fate/Samurai Remnant===
Cú Chulainn is a Masterless Rogue Servant participating in the Waxing Moon Ritual. Miyamoto Iori can recruit him to join his team.
===Fate/KOHA-ACE===
Within Fate/KOHA-ACE, Lancer is one of the summoned Heroic Spirit Soldiers summoned by the German Third Reich. He is a test soldier operated by an unnamed soldier. Hunting down Akiha and Kohaku, he is killed by the newly summoned Saber while monologuing. In the adaptation Fate/type Redline, he is replaced by Lancer.
===Carnival Phantasm===
GaeBolger.png|GaeBolCar
Lancer has prevalent role in the Fate segments of Carnival Phantasm and also acts as part of a involving his death. He is constantly "killed" within a segment in each episode aside from the second. While he dies without mention during Tsukihime segments, characters comment on it during the Fate segments with , in a reference to Kenny McCormick's similar constant deaths in . He has an episode based on the concept called "Final Dead Lancer", parodying the film series, where he manages to avoid his deaths from the previous episodes. He ends up being retroactively killed in the events from the second episode, and he's revived from his grave at the end of the episode as a horror movie reference. He drives a . He is also able to be used as a thrown weapon by Berserker.
===Today's Menu for Emiya Family===
Lancer_in_Today's.png
Lancer is a recurring character in Today's Menu for Emiya Family and first appears in Episode 2, peddling fish as a part-time job. Inspired by talks of Shirou's amazing cooking from Rider and Sakura Matou, Lancer convinces Shirou to let him come over for dinner that day. Lancer surprises Shirou and Saber when he arrives at the house, bringing with him a bag of booze. Taiga arrives soon after and Lancer joyfully greets her with a secret handshake. After dinner, Lancer helps Shirou clean the dishes.
Lancer appears again in Episode 7 alongside Archer. The two take part in a volleyball match against Shirou and Saber and easily defeat the pair by going all out on them, ignoring the fact that Shirou isn't a Servant.
Lancer appears briefly in Episode 9 when Shirou and Caster come to buy some fish. To their annoyance, Lancer makes the assumption that Shirou is Caster's "young giglio" and refuses to believe that Caster actually plans to cook food herself.
In Episode 10, Lancer helps a flower shop deliver flowers to Homurahara Academy for Ayako Mitsuzuri. Issei is not amused and gets into a fight with Ayako, who is promptly cheered up by Lancer.
In Episode 11, Lancer has a new part-time as a waiter at a cafe but requires a temporary cook, so he convinces Archer to help him out. A prior attempt to ask for Shirou's assistance failed, and offering to ask Shirou again is what convinces Archer to help Lancer, despite Archer's promise to meet Rin at the park soon. Lancer repeatedly praises Archer for his cooking skills and later tells Rin what Archer is doing. The episode ends with a scene of Lancer closing the cafe.
In Episode 13, Lancer briefly appears as a fish salesman as he watches the snow fall. 
===Capsule Servant===
Rin bazett end.jpg|Rin and Bazett ending.
Capsule Servant shirou jeanne end.jpg|Shirou and Jeanne ending.
===All Around TYPE-MOON===
Lancer appears as a waiter in the manga series All Around Type-Moon, working at Ahnenerbe under its manager, George. Because the manga is set inside the restaurant, Lancer appears in several chapters.
===Other appearances===
In TYPE-MOON's April Fools' Day 2009, moon.cinemas.jp is a fake movie theater site listing a number of parody films:
* He was featured in .
* He was featured in .
* He was featured in the animated film , a parody film of .
In TYPE-MOON's April Fools' Day 2015, Lancer is in a group called YARIO and is part of the Imperial Roma talent agency, his class is .
====Non in-universe appearances====
==Abilities==
As the son of , who possessed every skill such as knowledge, techniques and magic, Cú Chulainn exhibited superior talent from birth. Boasting supernatural ability that separated him from ordinary people from a young age, in time, the grown Cú Chulainn was accepted as a member of the famous Knigths of the Red Branch. His actions after that rendered him unmatched. Having seen in him a worthy student and disciple, Scáthach later taught him all that she knew about martial arts, including how to use Gáe Bolg, and Runic magecraft.
Outside of Lancer, Cú Chulainn also qualifies for the Saber, Rider, Caster and Berserker classes. Iskandar, the top Rider servant of the Moon Cell, desired to pit his own charioteering and swordsmanship skills against Cú Chulainn's when the latter showed his percipience of cavalry that came from the renowned feat of riding two ferocious war horses, Liath Macha and Dub-Sainglend into battles.Fate/EXTELLA - Iskandar Side Story: Mission 1 Cú Chulainn had gone berserk several times in life, but the Lancer-class suits him best.Fate/hollow ataraxia - "According to Saber, he would also fit in the Berserker-class, but I didn't believe it." Cú Chulainn is not simply a reckless warrior and is able to tell the quality of a Bounded Field and how to proceed further with it. As a Lancer, he possesses supreme agility, as well as excellent close combat skills.
Cú Chulainn obtains no geographical boosts from the cultural sphere around Japan, since those of Celtic mythology are not well known there. However, if he were to appear outside that cultural sphere, he would be on par with Heracles and King Arthur. In western Europe, he would receive a general boost in power similar to other European Heroic Spirits, and he would display a much sharper increase in power in his native Ireland, being one of its greatest heroes.
===Combat===
Lancerfighting.jpg|Cú Chulainn continuous thrusts pushing back EMIYA.
Archer vs Lancer (Ufotable).gif|Lancer battling Archer.
Saber starts fighting Lancer.gif|Saber attacking Lancer.
Lancer overwhelming Archer.gif|Lancer, uninhibited by a Command Spell, overwhelming Archer in close combat.
Archer's Mind's eye dodging Lancer's attack.gif|Lancer nearly skewering Archer with nigh unreactable speed.
Cú deflects EMIYA's arrows.gif|Cú deflecting EMIYA's arrows.
Lancer vs True Assassin.gif|Lancer easily contending with True Assassin's abnormal movements and attacks.
Cú Chulainn fights with Gáe Bolg, a two-meter spear, allowing him to only need to attack when an opponent enters his range. Such a distance as three meters between him and the opponent matters little, so while it is easier to thrust at an approaching enemy instead of moving out, he will still quickly close the distance between an opponent instead. All of his thrusts are enough to be a finishing blow. The main strength of Gáe Bolg is in its swings rather than thrusting as its shape would indicate. Its wide swing utilizes its long range to not allow the enemy to dodge by stepping back. Partial retreat from a strike will not allow for escape, attempting a counterattack would result in receiving a slashed stomach, and simply going forward will result in a smashed rib from the long shaft of the lance. Thrusts are still dangerous, but it is possible to avoid an attack that targets a specific point once it has been seen through to allow for the strike to be redirected to create an opening. Cú Chulainn is able to easily put distance between him and his opponent at any point in a battle, and use his lance to vault thirty meters, his speed is extraordinary. EMIYA claimed his speed is extraordinary among even the fastest among other Lancers.
He fights with intensity, and it would normally be that closing in on an opponent in such a matter would be suicidal with such a long weapon. Lances are effective against swords because there is no effective way of parrying them with a sword. Strong rebuffs from a sword only results in a counterattack, while weak rebuffs do not create any openings. The most important part of a battle between the two is defeating the enemy while they are at the wrong range. Spearmen normally use their length and freedom of range to win a battle, and discarding such an advantage by closing in should mean defeat. Such by the book tactics mean little to him, as his ability with the lance shows no vulnerabilities due to not having to follow the general rule on lances. His strikes that are fast enough that even the afterimages are blurred allow him to easily remove any possible openings, and he can constantly increase the speed of his thrusts and make continuous attacks without allowing the slightest pause in between.
Cú Chulainn specializes in survival, and his capable of returning alive no matter how hopeless the situation. He usually prefers to fight with his full power as a warrior. However, contrary to his legendary battle prowess, his fighting in the Fifth Fuyuki Holy Grail War is extremely limited due to his Master, Kirei Kotomine having used a Command Spell to order him to fight then withdraw as part of his reconnaissance missions. Despite having fought several Servants to a draw, he never started a fight on his own. Even if he gains a full chance to kill an opponent, he was to merely observe. Even in the middle of his first battle with EMIYA, he showed decisive action by leaving the battle to kill Shirou Emiya, whom he recognized to have witnessed it. The withdrawal was also very skilled, giving the appearance of realizing that the situation was unfavorable. He could only go all out against an opponent during their second encounter, as seen during his second fight against EMIYA. Without anything binding him, his strikes were much faster and harder to see than in their previous battle. The only way EMIYA was able to keep up with him in direct combat compared to the previous fight is due to having familiarised himself with Cú Chulainn's fighting style during their first encounter
=== Skills===
====Class Skill====
* Magic Resistance (C Rank): A Skill that protects Cú Chulainn against magecraft. At this rank, spells of two verses and below are cancelled.
====Personal Skills====
LancerBc.jpg|Cú Chulainn displaying Battle Continuation
Cu using Battle Continuation (Ufotable).gif|Cu using Battle Continuation to get up and kill Kirei.
*Battle Continuation (A Rank): Legend tells that the dying Cú Chulainn tied himself to a tree before taking his last breath. Because of this anacdote, he possess the highest possible rank in this Skill. It's possible for him to fight even on the verge of death, surviving as long as his injury is not decisively lethal. Even in a hopeless battle, Cú Chulainn was still able to demonstrate astonishing tenacity, delaying Gilgamesh for half a day. Against EMIYA who dextrously fended off his spear thrusts, Cú Chulainn countered with an unyielding fighting spirit. After recieving a decisive strike to the heart from Fragarach, he is able to last for a period of time afterward. Even without an active heart or Master, he is able to hold his rapidly fading form through the use of this Skill. After being forced to stab himself in the heart in the Unlimited Blade Works route, he has enough energy to get up, remove the Gáe Bolg from his chest, retaliate against Kirei, free Rin Tohsaka, ward off Shinji Matou, and utilize the Ansuz Rune to burn his body along with the entire room. Although this skill is usually ranked A, in the Moon Cell, it is temporarily decreased due to his Master, Hakuno Kishinami boosting his Endurance at the expense of this ability.
:*Ath nGabla (A Rank): Upgrade from Battle Continuation in Fate/Grand Order.
*Disengage (C Rank): Cú Chulainn possesses the ability to withdraw from the battlefield in the midst of combat. It also returns disadvantageous battle to the status when it began and skill conditions to its initial values. Due to simultaneously having this skill along with Battle Continuation, Cú Chulainn shines in skirmishes as opposed to one-on-one duels. However, since he likes duels so much, this fact does not really stand out. It is only when having been commanded to go on reconnaissance missions by his Kirei, that this ability was fully demonstrated.
*Divinity (B Rank): This Skill shows that a Servant possesses Divine Spirit aptitude. The higher it is, the more one is a mixed race of a physical divine spirit. Cú Chulainn inherited the blood of Lugh, the god who governs over the sun and main god of Ireland's pantheon, the Danann. At his rank, this ability allows one to break through and defend against otherwise invincible Skills, such as Enlightenment of the Sacred Fig and Protection of the Faith.
Cu using a fire rune.gif|Cu using a fire rune to burn himself and Kotomine.
Cú's Rune marked stones deploying a protective barrier.gif|Cú's Rune marked stones deploying a protective Bounded Field.
Ath nGabla.gif|Ath nGabla
 
*Rune Magecraft (B Rank): Cú Chulainn studied rune magecraft under Scáthach in the Land of Shadows. The Runes are a form of magecraft unique to Northern Europe, which if performed by engraving a word of power into stone to induce various mystical effects. Although he is a nearly first-rate master, since he sees Runes as a hindrance he does not usually employ them in combat. He appropriately utilizes them to respond to different situations. One such rune, one with the purpose of searching, helps support his elusive actions during the Holy Grail War. Holding the Ansuz rune allowed him to set a blaze to reduce an entire room to ashes, causing a continuing conflagration that seeped into the rest of the Einzbern Castle and cause it to crumble. He can use them as a counter measure against Mystic Eyes, even those as potent as Mystic Eyes of Petrification.
 He inscribes his armor with runic protections, and he is able to set up a powerful Bounded Field in an instant by carving all of his runes onto the ground. It is able to block a great Noble Phantasms, but it was unable to stop the encroachment of the Shadow. Another use of multiple Runes is , a seal formed by pointing his spear at the ground and carving four runes, Algiz, Nauthiz, Ansuz, and Ingwaz, in four corners around him. It is a curse passed down to the Knights of the Red Branch the creates an arena formed from four branches, guaranteeing one-on-one combat without the possibility of retreat. It does not carry any inherent magical energy.
*Protection from Arrows (B Rank): Cu Chulainn was born with the special ability to deal with projectiles. It's said that it's possible for him to avoid any long range attack as long as he has made visual confirmation of his opponent. He can deal with most projectiles even in conditions where the opponent cannot be visually seen, as shown in his battle against Hassan of the Cursed Arm, where he blocked the throwing dirks hurled from the darkness despite having precision rivaling that of Archer able to accurately fire between Cú Chulainn's swings. He reads the course of the projectile attack by using the sound of cutting air and the enemy's murderous intent. As long as the attack is a thrown type, he can avoid even Noble Phantasms, but he can't gain the effects of this protection with respect to wide range attack types where the attack range of the weapon explodes on impact, or a direct attack by a weapon that has simply long reach.
===Noble Phantasms===
Lancer's weapon is the Gáe Bolg, the spear of causation which carries a curse that reverses causality. The wounds inflicted by the spear cannot be healed as the curse of the spear renders them incapable of altering their fate, as long as the spear remains in the world. The weapon has two main techniques which can be classified as separate Noble Phantasms, the first of which reverses causality to always strike the heart, and the second of which unleashes the full potential of the curse to strike the enemy by hurling the spear with overwhelming power. Gáe Bolg on its own cannot harm Heracles due to God Hand nullifying all attacks ranked B or lower. However, reinforcing the spear with Runes would temporarily raise its rank to A, giving Lancer a chance of victory, however small.
 
Due to Gáe Bolg being a Noble Phantasm with a conceptual effect, it could kill Arcueid Brunestud even though she is superior to Lancer in raw parameters.
If he were to be summoned in his homeland of Ireland, he would have access to several more Noble Phantasms, including a fortress, a Chariot{Siabur-Charpat}(his two horse Liath Macha and Dub-Sainglend), and a .
Fate/Apocrypha Volume 3: Triumphal Return of the Saint - Chapter 03, p.420
===Gameplay===
====EXTRA series====
In the EXTRA series, he possesses the following skills:
* - A skill used upon himself. It absorb enemy MP when using BREAK. The effect would only last for 3 turns.
* - physical damage and paralysis on enemy. The effect would only last for 3 turns. He will use this Skill on the 1st move.
* - Inflicts physical damage on an enemy. He will use this Skill on the 1st or 3rd move.
* is a Rune technique that revives him. This effect which greatly boosts his strength and defense are permanent and would last till the end of battle, unless negated. The effect which would revive him will only last until his first death, unless negated.
====Fate/Samurai Remnant==== 
*Scarlet Spear: Unleashes multiple horizontal sweep with the spear.
*Piercing Spear: Charges forward with the spear. Hitting a wall will change the direction of the charge.
*Gáe Bolg: Delivers a thrust with the magic spear. By reversing karma, this blow unerringly strikes true.
*Rally: Regains footing, increasing Noble Phantasm Gauge.
==Development ==
===Creation and Conception===
Cú Chulainn was designed by Takashi Takeuchi in Fate/stay night.
Cú Chulainn was illustrated by Arco Wada in Fate/EXTRA.
Cú Chulainn was illustrated by Takashi Takeuchi in Fate/Grand Order, the coloring of Stage 4 was done by Shimokoshi. His scenario writer is Kinoko Nasu in Fate/Grand Order.
He is a tragic Servant, who embodies the cynical notion that "wishes don't come true".
====Comments from Illustrator====
"Just like EMIYA, his third stage ascension does not really differ from the original design. We go with the concept of “if he is designed at present time”. Upon consideration, I wonder if I should have made some more modification." (Takeuchi Takashi)
===Reception===
* In the first Popularity polls of Fate/stay night in 2004, Lancer was ranked 8th and the third most voted male character.
*In the second Popularity polls of Fate/stay night in 2006, Lancer was ranked 6th and the second most voted male character.
* In the Type-Moon's 10th Anniversary Character Poll, Lancer from Fate/stay night was ranked 20th and the seventh most voted male character. Lancer from Fate/EXTRA was ranked 156th. Lancer from Fate/hollow ataraxia was ranked 232nd.
==References==
Category:Characters in Fate/stay night
Category:Characters in Fate/hollow ataraxia
Category:Characters in Fate/tiger colosseum
Category:Characters in Fate/unlimited codes
Category:Servants
Category:Servants with Divinity
Category:Magi
Category:Characters in Fate/Grand Order (Part 1)
Category:Lancer-class Servants
Category:Characters in Fate/EXTRA
Category:Characters in Fate/EXTELLA
Category:Brynhildr's Beloved
Category:Irish Servants
Category:Heroic Spirits
Category:Humans
Category:Top Servants
Category:Lawful Neutral Servants
Category:Heaven Attribute Servants
Category:Qualifies for Rider-class
Category:Qualifies for Berserker-class
Category:Knights of the Red Branch
Category:B rank Strength Servants
Category:A rank Agility Servants
Category:A rank Endurance Servants
Category:C rank Mana Servants
Category:E rank Luck Servants
Category:D rank Luck Servants
Category:C rank Endurance Servants
Category:B rank Noble Phantasm Servants
Category:German Third Reich
Category:Introduced in 2004
Category:Pseudo-Servant hosts
Category:Scottish Servants
Category:Voice - Nobutoshi Canna
Category:Characters in Fate/Samurai Remnant
Category:Ulster Cycle (topic)