Dioscuri

, Class Name , is a Saber/Avenger-class Servant summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order.
==Profile==
===Identity===
Two siblings from Greek mythology, the elder twin brother and , the younger twin sister. Castor was trained by Chiron, noted among fellow "shining stars" students like Heracles, Achilles, Jason, and Asclepius.Fate/Apocrypha volume 2 He and his sister were later sublimated as the constellation.
====Legend====
Once there were two twins who ascended to the heavens above, becoming the shining constellation of Gemini.
The name Dioscuri holds the meaning of “child of Zeus”. Within the 3rd century BC book “Catasterismi” it is said that the constellation of Gemini is the Dioscuri, and that the twins were respectively called Castor and Pollux. It is in Laconia (the southeastern part of the Peloponnese peninsula) where not long after being witnessed together they ascended to the heavens. A love surpassing what was held between this brother and sister was never to be seen again. Out of wanting to forever remember the close relationship the two held, Zeus created a constellation using the stars of two independent formations, thus naming the constellation Gemini.
Originally the twins were worshiped as “nimble horsemen”. Also, Having been thought to be the stars that light up the night skies after a passing storm they were worshiped by people. However, as time passed people ended up believing that St. Elmo’s Fire which would appear on a ship’s mast in the middle of a storm was the true manifestation of these divine twins.
The divine twins were the Patrons of sailors. In the beginning they were worshiped for swiftly saving people from danger, however, from their role in “The Argonautica” as part of the Argo’s crew they have come to strongly carry the personification of being Gods that rescue sailors. Known by many names such as “The Two of Royalty”, “The Two Pillars”, and many others the twins never actually held their own true names. Leaning on their ancestors, it is thought that they ended up taking on the names and history of “Castor (Kastōr)” and “Pollux (Polydeuces)”. Within the stories of “The Argonautica”, “The Iliás”, “The Myths of Hyginus”, “The Metamorphoses”, “Bibliotheca” and many others while one of them is the child of Zeus they are not actually gods. Rather, they are shown as human beings prior to them becoming a constellation.
===Appearance===
As twins, the Dioscuri share the same hair, eyes, and skin color. Castor wears a short haircut, while Pollux wears pig tails. They wear white fabrics with black undergarments, gold accessories, golden colored sandals for Castor and golden colored heels for Pollux, and teal headdresses that become blue in their 2nd and 3rd Ascensions.
Castor wields a small three-layered golden shield with black accents and a transparent blue sigil, Pollux wields a golden sword with black accents.
The Dioscuri are always together without ever being a moment apart, the inseparable twins. “They are unable to be apart.” could be said to be an understatement as the two of them are “One Heroic Spirit that is formed by two.”
===Personality ===
As they are already ancient Divine Spirits, the Gemini possess a unique characteristic upon their manifestation: while being a single entity, they retain two separate bodies, and each of their bodies retains the attributes of a different class.
The elder brother, Castor, who was not the child of Zeus, harbors bitter resentment for the gods who led humans to ruin. He possesses the characteristics of an Avenger… However, as he has materialized alongside his sister, who he cherishes above all others, he continues to admonish himself away from unleashing all of his rage
The younger sister, Pollux, Zeus's immortal daughter, is a Saber who leverages her invincible physique to facilitate her indefatigable application of her masterful sword work. Manifested as a Servant, that immortality is expressed in the form of her supreme rank in the Endurance parameter. In both word and deed, she is relatively blunt with her older brother, but truthfully, she loves and respects him profoundly. According to legend, when her brother died, Pollux’s grief was so profound that she prayed to the heavens to never again be parted from her brother.
While the Gemini's Spirit Origin is registered as a Saber because of their nature as a single entity, they function as a dual-class Servant. This unique characteristic was likely allowed because they are a Divine Spirit Servant.
Unlike their Lostbelt counterparts, the Dioscuri from Proper Human History are much less hostile to humanity. While Castor has a nature and history sufficient to manifest with an Avenger Spirit Origin, his sister Pollux has a much gentler personality compared to her Lostbelt self. Because his sister is present to chide him, it is alright, to some extent, to let him loose.
The brother will never trust a human Master. The sister acknowledges that their Master continues on an arduous journey, not dissimilar to a voyage through a storm, and vows to safeguard that journey. “I suppose it can’t be avoided, then” says the reluctant brother, respecting his sister’s principles.
====Relationships====
;Roman Servants
:"Castor: “Gemini” you say?"
:"Pollux: Ah, I’m sure it’s how they call us in Rome, Brother."
:"Castor: Is that so? The ring of it isn’t quite that bad."
:"Pollux: Do you like it?"
:"Castor: I didn’t say I like it, did I?"Fate/Grand Order Lines
;Argonauts Servants
:"Castor: Sister, we had adventures on that ship, didn’t we?"
:"Pollux: Yes, Brother. We had them. Heracles was a really good warrior."
: "Castor: Absolutely. ...No wait, Sister. Did you, without me knowing, with Heracles...?!"
:"Pollux: No, I did not. I’ll kill you, Brother."
;Jason
;Asclepius
;Atalanta/Atalanta Alter
;Caenis
;Heracles (Berserker)
;Medea/Medea Lily
;Peleus
;Theseus
;Chiron
; Ship Related Servants
: "Castor: As if we’d protect humans."
: "Pollux: No, we’ll protect them. They need our protection."
:"Castor: I don’t care what happens to humans."
:"Pollux: We’ll protect them." 
:"Castor: What happens to humans———!"
: "Pollux: I’ll be sad if humans die."
: "Castor: Why?!"
:"Pollux: Because you too were human once, Brother."
:"Castor: ..."
;Child Servants
:"Castor: Infants? What’s the meaning of these humans?"
:"Pollux: I think they’re all really quite fond of you. After all, you take such good care of them, brother."
:"Castor: Pollux!"Fate/Grand Order material X - Dioscuri profile translated by Justicar Jyggalag at Reddit.
;Voyager
:The twin stars can’t help but laud that tiny traveler sailing through the Sea of Stars. While blessings and praise flow from their mouths… The truth is that their thoughts are filled with hopes and prayers.
==Role==
===Fate/Grand Order===
====Farewell to Kamakura ~Little Big Tengu~====
Fate/Grand Order - Little Big Tengu: Farewell to Kamakura, Section Five: To the Heavens? (2/2)
====Interlude====
=====Searching For The Star of Guidance=====
=== Other appearances===
====Fate/Apocrypha manga====
In chapter 52 of the Fate/Apocrypha manga adaptation, Castor appears in Achilles' flashback when he remembers other students of Chiron.Fate/Apocrypha Manga - Episode 52: The Final Night
==Abilities==
Being at their core an ancient Divine Spirit they manifested with special traits at the time of their summoning. They exist as one while residing in two separate physical bodies in which can be found the traits of different classes. The humiliation the older brother Castor, who became the child of a mortal without the blood of Zeus in later legends, felt falling from the gods to the Human World turned into hatred, resulting in his manifestation as an Avenger. Living a life with a body that cannot be hurt and doing battle with fierce swordsmanship, the immortal one who bears the bloodline of Zeus, Pollux has appeared as a Saber. Recorded in their Saint Graph is that of the Saber class, however, to be more accurate the two of them are what is considered a double class servant. Though what could be thought to be the case of an exception, the special traits the two possess are that of a Divine Spirit servant.
When the Dioscuri unlock their Final Ascension, their Magical Energy increases tenfold. According to Mash Kyrielight, they are too powerful to be considered Heroic Spirits anymore. She claims that they have reached a Divine Spirit status. Even Oda Nobunaga admits she stands a bit out of place next to Mystics like them. They claim that in this state they can obliterate Kiichi Hougen and Summer Medb.
===Combat===
Pollux is said to be skilled at boxing. 
===Skills===
====Class Skills==== 
*Magic Resistance (A Rank): As a Saber, it’s natural that Pollux has a high Magic Resistance rank.
*Riding (B Rank): Pollux has talents in the Riding skill, due to being a Saber.
*Mad Enhancement (B- Rank): A skill possessed by the sister, Pollux. Mutual communication is possible, but the parameter-increasing effect has been limited. However, if her brother is severely wounded, she will fly into a frenzy and be almost impossible to communicate with, becoming the very incarnation of aggression.
*Avenger (B Rank): As Castor, the brother, is an Avenger, he has this Avenger skill naturally. It is a skill that symbolizes his vengeful desires against humans.
*Self-Replenishment (Mana) (D Rank): As an Avenger, it’s natural that Castor holds the skill of Self-Replenishment.
*Oblivion Correction (B Rank): In later legends, the divine blood of Zeus the twins had was forgotten, however it was recorded in Castor's Saint Graph, and not Pollux's, who was recorded as a Saber. Being summoned together under the Saber Class, Dioscuri is the only non-Avenger Class Servant with this skill. Castor will never forget that he is, himself, a fallen god.
====Personal Skills====
*Divine Core of the Twin Gods (B Rank): A skill that both possess. As ancient divine twins it should have possessed the power of A rank. However, from being affected by the growing legends within Greek Mythology as time passed the skill ended up at the power of B rank. In particular, it is thought that a major effect came from the legend of the brother Castor being "one without the blood of the Gods".
*Stars of the Chief God (A Rank): Displaying the way of Divine Twins through them existing together as one and becoming a constellation.
*Guardians of Navigation (B Rank): Calling forth protection for those who sail the waters. The existence of Divine Twins brings forth hope for those in danger and energizes them from their very Souls. It is a skill that resembles the Voyager of the Storm skill, and is intrinsically a composite skill that contains Charisma and Tactics.
*Mana Burst (Light/Ancient) (A Rank): A skill that displays their being the light which illuminates the ocean way, “”. In many ways similar to the subspecies Mana Burst that some Saint type Servants possess, it is able to release Magical Energy in the form of strength increasing light.
===Noble Phantasms===
The Dioscuri's main Noble Phantasm is Dioscures Tyndaridae.
In combat, they wield the weapons Alpha Castor, Beta Pollux. The sword Pollux wields and the shield Castor wields are made out of invincible Adamant, the so-called divine steel, was used as the vessel for the materials, with Odysseus's Aigis armor being made out of it, as well as Achilles' shield and armor.Fate/Grand Order - Dioscuri's Craft Essence
==Development==
===Creation and Conception===
Dioscuri was designed by Taiki in Fate/Grand Order.
Their scenario writer is Hikaru Sakurai in Fate/Grand Order.
Part of the profile in Fate/Grand Order was revealed to have been directly copied from a Japanese research source, leading to a change in the text and apology from TYPE-MOON staff and DELiGHTWORKS.Twitter apology and Fate/Grand Order website apology
===Comment from Illustrator===
"They’re a Servant composed of both a man and a woman, so I have a strong memory of how hard it was to draw two people in their Standing Art and in their Final Ascension. The motif was the legends of the Gemini from Greek mythology, so the image that came to mind for their clothes was a chiton (giving the impression of the cloth drooping down). The laurel-like ornament originated on Pollux’s design, but because of the image of her brandishing her sword as a vanguard, I intuitively wanted to make it look like the visor on the front of a cap or a helmet, so I added that." (Taiki)
==References==
Category:Servants
Category:Characters in Fate/Grand Order (Part 2) 
Category:Heroic Spirits
Category:Divine Spirits
Category:Genderswapped Servants
Category:Saber-class Servants
Category:Avenger-class Servants
Category:Greek Servants
Category:Chaotic Neutral Servants
Category:Heaven Attribute Servants
Category:Servants with Divinity
Category:Argos-Related
Category:Paired Servants
Category:A rank Strength Servants
Category:A++ rank Endurance Servants
Category:C rank Mana Servants
Category:C rank Luck Servants
Category:B rank Agility Servants
Category:B rank Noble Phantasm Servants
Category:Brynhildr's Beloved
Category:Introduced in 2020