Bahamutt

Bahamutt is a large dragon encountered by Mario and his allies while exploring Bowser's Keep in Super Mario RPG: Legend of the Seven Stars. Both Chester and Magikoopa can summon Bahamutt to help them in battle, as he is indeed a strong foe. Bahamutt had a lot of HP and above average stats (similar to Fautso). Besides regular biting attacks, the dragon can resort to the special moves Iron Maiden, which triggers a Fear status ailment, and Drain. Despite being very strong, Bahamutt does not seem very confident in his own abilities, as revealed by his Psychopath thought.

Trivia

 * Bahamut (with one "t") is a powerful dragon from the Final Fantasy series and Bahamutt's namesake. The two creatures, however, hardly look alike.
 * It is possible that the Final Fantasy Bahamut is named after "Bahamūt", an alternate spelling of "behemoth", a mysterious creature (thought by several to be a dinosaur) mentioned in the Bible's Book of Job. If this possibility is true, Bahamutt is indirectly named after the behemoth. It is also, however, possible that Final Fantasy ' s Bahamut is named after the Bahamut character in Arabian mythology (an omnipotent being who rode on a whale's back), which would make this Bahamutt's indirect namesake.
 * There is an unused subspecies of Bahamutt in Super Mario RPG who resembles Boshi, with purplish coloration and pointed sunglasses. It has no psychopath, and can use the move Flame.
 * Bahamutt may be based on the Yoshi. It's even possible that it is a sub-species of the Yoshi, as it's Japanese name is similar to Yoshi's name, and that the creature loosely resembles Yoshi.