Mountjoy

Mountjoy is a mutant from Marvel Comics.

Powers
Body merging: Mountjoy is able to merge with others and absorb their memories. If he merges with a mutant, he can use their powers at will. He can either ride along with his victims, controlling their actions, or absorb their bodies into himself and use their powers as his own.

Basilisk field: He can also project a "basilisk field", which slows his opponents' reaction times within a five yard radius.