The X-Men are mutants - humans who are born with a genetic trait called the X-gene which grants them natural superhuman abilities in the Marvel Universe. First The Uncanny X-Men figures were released by Toy Biz.

For most Marvel Universes many bootlegs / knockoffs have been released. The Uncanny Master is one of bootleg releases of The Uncanny X-Men, based on Toy Biz figures. The figures came with random weapons for each character.