Bahamut

Bahamut (バハムート, Bahamūto?), sometimes known by his epithet "The Dragon King," is one of the most prominent summons in the Final Fantasy series. Bahamut has appeared in several installments, as well as his own game, Bahamut Lagoon. He also appeared as an enemy in Super Mario RPG: Legend of the Seven Stars with the name of Bahamutt, in addition to being the namesake for the Sky Fortress Bahamut in Final Fantasy XII. In the Compilation of Final Fantasy VII, there are several species of Bahamut. A Bahamut-like summon called Gun Dragon appears in Final Fantasy: Unlimited.

He was obtained after Ace defeated Bajel in Godshill with his unlocked potential.