A young man from San Diego, California, Fabio's new mutation emerges after someone attempts to rob him. The odd, bouncing balls that shoot from his body cause panic around him and the police attempt to arrest him. Cyclops, and his team of X-Men, arrive to defend him. Though the team is attacked by sentinelsSentinels, they are able to whisk Fabio away to his new life as a mutant.
Fabio was created by writer Brian Michael Bendis and artist Chris Bachalo. He first appeared in the story "The New Revolution" in Uncanny X-Men #1 (Feb. 2013).