Colossus' Powers Give Him The Opposite of Wolverine's Healing Factor

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Marvel's Wolverine is one of the most popular X-Men characters in the franchise, but his friend and comrade Colossus isn't too far behind. Both characters are incredibly strong-willed superheroes who can shrug off most damage in multiple ways: Wolverine with his mutant healing factor and Colossus with his metallic armor. But Colossus has a crippling weakness that is almost the complete opposite of Wolverine's power.

Both Wolverine and Colossus debuted inGiant-Sized X-Men #1 in 1975. The issue marked a significant turning point in X-Men history as the entire original team was set aside in favor of an international team of mutants with new and exciting abilities. Professor X recruited Wolverine from Canada (where he was already serving as a member of Alpha Flight) and Colossus from Siberia in the Soviet Union. Both new X-Men would go on to serve the team for decades, and their mutations make them both extremely hard to kill.

Related: One X-Men Hero Was Actually Wolverine For Much Longer Than Logan

While the two frequently work together, their powers differ drastically. Wolverine, apart from his enhanced senses, has an incredibly potent ability to heal from nearly any injury; he's survived gunshot wounds, explosions, and even Magneto ripping his metal skeleton from his bones in X-Men #25. Colossus' armored form, meanwhile, is almost impervious to any damage — but he's also unable to change his body while in his metallic form. This includes healing of any kind, and while this would usually be a positive attribute, he can be injured while in his metal form, such as the moment below inUltimate X-Men #96.

The story involves a dispute between Colossus and Wolverine over the mutant drug Banshee, ending with Wolverine ripping