From the Super Mario Wiki
Bahamutt is a colossal 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 him to help them in battle, as he is indeed a powerful foe. Bahamutt has a lot of HP and above average stats. 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 doesn't seem very confident in his own abilities, as revealed by his Psychopath thought.
Names in other languages
The unused Bahamutt sub-
- Bahamut (with one "t") is a powerful dragon from the Final Fantasy series and Bahamutt's namesake. The two creatures, however, hardly look alike.
- There is an unused sub-species of Bahamutt who resembles Boshi, with purplish coloration and pointed sunglasses. It can use the move Flame, though it has no psychopath.
- Bahamutt has quite a few relations to Yoshis. Its Japanese name is similar to Yoshi's name and the creature's body shape resembles Yoshis. If a Yoshi Cookie is used on a Bahamutt, Yoshi will swallow it and produce a Yoshi Candy item (which is normally earned if Yoshi fails to swallow an enemy).