Bahamut

Bahamut (バハムート) is an ancient malevolent dragon of unimaginable power, little to nothing is known about the origin of this Being, but in mortal-made history, Bahamut was shown to be powerful enough to devastate half-a continent unimpeded in mere moments of what appears to be minimal effort, it took the God Kings Zeus, Odin, and the Demon Lord Satan's full power to even remotely compare, the only semi-clear motive from this ancient being is the absolute annihilation of anything and everything in it's path, or perhaps anything PERIOD.