Piotr Rasputin (Earth-1600)

Piotr Rasputin (a.k.a. Colossus) is a mutant with the ability to turn his skin into organic steel and gain superhuman strength. He is an X-Man-turned terrorist who joined Cyclops' cause in overthrowing humankind in the Extinction Team after the X-Men failed to support his younger sister, Illyana.