Brotherhood ( weapon ) The Brotherhood is Tidus ' s signature sword in " Final Fantasy X " . It appears in several other games as well . His other signature weapon is his ultimate weapon , the Caladbolg . The Brotherhood is famous for not only being Tidus ' s weapon , but for its unique appearance , seemingly made of water . It is one of the most recognizable swords in the " Final Fantasy " series . Design . The Brotherhood is a longsword terminating in a long hook with a shimmering blue , water - like blade . In " Final Fantasy X " , bubbles exude from the blade itself to show its Waterstrike ability after it is customized onto it in Guadosalam . The grip of the sword is wrapped in a brown material , and a red ribbon hangs from the pommel area . The guard is black and extends only over the back of the blade . Gilgamesh ' s fake Brotherhood in " Final Fantasy XII " retains the blade ' s color , but the sword terminates in two hooks rather than one , the grip is black instead of brown , and the guard is a different shape , more closely resembling a wave . In the " Dissidia Final Fantasy " series the hook at the end of the blade is slightly shorter , and the guard is a little smaller than its " Final Fantasy X " counterpart . Appearances . " Final Fantasy X " . The Brotherhood used to belong to Chappu , Wakka ' s brother . Wakka gave it to him as a gift a year ago for when Chappu fought as part of the Crusaders against Sin . On the day Chappu died , he did not take his sword , but decided to fight with an Al Bhed machina weapon instead . This made Wakka despise machina , as well as the Al Bhed , on a personal level , rather than on just a religious one . Wakka decides to give the sword to Tidus , because he reminds Wakka of Chappu . It also symbolizes the brother - like bond the two develop . When the party visits the Farplane and Tidus listens to Wakka speaking with the image of Chappu , the sword is enhanced , adding Strength + 10 % and + 5 % , Waterstrike , and Sensor . Even though the player receives the sword fairly early the Brotherhood is arguably Tidus ' s strongest non - upgradable weapon , second only to his Celestial Weapon , Caladbolg . The Brotherhood has a disadvantage against certain fiends if they resist , negate , or absorb the Water - element . However , it is very useful in the Thunder Plains , visited soon after the Farplane , as it is crawling with Lightning - elemental fiends which are weak against water . " Final Fantasy X - 2 " . The Brotherhood is wielded by Yuna when she is equipped with the Warrior dressphere , but it does not have the water element . Also , in the International and " HD Remaster " versions , if the player encounters or recruits Tidus , he will fight with the Brotherhood . " Final Fantasy XII " . Gilgamesh wields a fake version of the Brotherhood among his arsenal of counterfeit versions of other famous weapons . His Brotherhood is a paler shade of blue , has a series of spikes instead of a crest of bubbles at the bottom of the blade , and has two hooks on either side instead of just one . This weapon can be unlocked and used by the player characters via hacking . " " . The is a sword - type weapon available to Lightning through the sphere hunter and comes with Yuna ' s Gunner garment and , a shield that takes the appearance of Tidus ' s default shield . It raises Strength by 330 points and Magic by 100 points . " Final Fantasy Legends II " . The weapon can only be obtained in the " Legends II " new update that took place in November 2016 . It provides 210 Attack and 180 Magic to anyone who equips it . " Dissidia Final Fantasy " ( 2008 ) . Tidus wields the Brotherhood with similar water effects on the sword like in " Final Fantasy X " . However , the " bubbles " near the hilt take on a more formidable appearance , resembling a second hook at the base of the edged side of the sword . " Dissidia 012 Final Fantasy " . Tidus ' s signature weapon returns for the prequel to " Dissidia " , which he keeps for every of his character costumes . " Theatrhythm Final Fantasy " and " Theatrhythm Final Fantasy Curtain Call " . Tidus wields the Brotherhood in his character model . " Final Fantasy Airborne Brigade " . Tidus appears as a Legend wielding his signature weapon , the Brotherhood . " Final Fantasy All the Bravest " . Brotherhood grants + 2 to Attack . It can be equipped by Warrior , Red Mage , Blue Mage , Onion Knight , Firion , Terra , Celes , Zidane , Tidus , Ashe , and Lightning . Tidus wields the Brotherhood in battle when attacking . " Final Fantasy Explorers " . Tidus appears with his trademark Brotherhood weapon . Due to the game ' s cartoon - like nature , the sword is larger compared to his body than in " Final Fantasy X " . " Mobius Final Fantasy " . The Brotherhood was a gift for Japanese players who registered their accounts earlier . It is a powerful sword equipped by Warrior - type job classes . In the western version , from launch until August 31 , 2016 , Square Enix awarded players with special in - game items , including Brotherhood . Non - " Final Fantasy " guest appearances . " Dragon Quest & Final Fantasy in Itadaki Street Special " . Since the Brotherhood is Tidus ' s trademark weapon , the non - specific appearance of this blade is directly related with the appearance of Tidus in other games , like " Dragon Quest & Final Fantasy in Itadaki Street Special " . " Puzzle & Dragons " . The Brotherhood appeared in " Puzzle & Dragons " as part of the " Final Fantasy " collaboration . Etymology . The weapon is called " Fraternity " in the Japanese version .