X-Men Poster #157 Cyclops Professor X Wolverine Rogue by Jim Lee Uncanny 280

Cyclops holds an unconscious Professor X while Wolverine, Rogue, Colossus and Phoenix look on!

Colossus is a mutant that has the ability to transform his entire body into a form of organic steel , with properties analogous to osmium[citation needed] but of still unknown composition. Colossus cannot transform a portion of his body into this armored state; he must transform completely. When he transforms, he gains around a foot in height and his weight is at least doubled. In his armored form, Colossus possesses superhuman levels of strength, as well as superhuman stamina and durability. His physical strength is currently greater than when he first joined the X-Men due to the realignment of his cells by Magneto following an injury during the Mutant Massacre. While in his armored form, Colossus requires no food, water, or even oxygen to sustain himself, and is extremely resistant to injury. He is capable of withstanding great impacts, large caliber bullets, falling from tremendous heig