Brotherhood (weapon)

The Brotherhood (フラタニティ, Furataniti lit. Fraternity) is Tidus's signature sword in the game Final Fantasy X. It appears in several other games as well.

The Brotherhood is famous not only for being Tidus's weapon, but for its unique themed appearance, seemingly made of water. It is one of the most recognizable swords in the Final Fantasy series, along with the Buster Sword, the Revolver, the Masamune, the Excalibur, the Ultima Weapon, and others.

Final Fantasy X
The Brotherhood used to belong to Chappu, Wakka's brother. Wakka gave it to him as a gift for when Chappu fought as part of the Crusaders against Sin one year prior to the storyline of Final Fantasy X. However, 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 matter, rather than on just a religious one. Wakka decides to give the sword to Tidus, because he reminds Wakka of Chappu.

When the party visits the Farplane and Tidus listens to Wakka speaking with the image of Chappu, the sword is enhanced, adding a total of Strength +15% (+10% and +5% stated on the weapon), Waterstrike, and Sensor. Even though the player gets the sword pretty much at the beginning of actual gameplay, Brotherhood is arguably Tidus's strongest non-upgradable weapon, second only to his Celestial Weapon, Caladbolg. However, the Brotherhood has a disadvantage against certain fiends if they are resilient to the Water-element.

Final Fantasy X-2
The Brotherhood is wielded by Yuna when she is equipped with the Warrior Dressphere. It notably lacks any sign of its Waterstrike ability.

Final Fantasy XII
Gilgamesh uses an imitation of the Brotherhood sword, clearly a fake, as it has a hook on each side, unlike the original.

Dissidia Final Fantasy
Tidus uses the Brotherhood as his weapon in Dissidia Final Fantasy with similar water effects on the sword like in Final Fantasy X. In Dissidia, however, the handguard near the blade's handle has switched sides from the original design, onto the edged side.

Non-specific appearances
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 and Dissidia Final Fantasy.

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