The latest addition to the Xavier School's newest class of young mutants, Mondo may very well be the student with the most to learn. Hailing from a worry-free island paradise, the happy-go-lucky Mondo is an extremely powerful mutant "omnimorph"--possessing the ability to absorb the properties, and take the shape, of all types of matter. Mondo's teachers, Banshee and Emma Frost, must instruct him in the use of his powers and instill in Mondo a battle instinct he will require if he is to survive as a member of Generation X.