Do you want to compare Colossus with Onslaught? Discover the powers, weakness & weapons of Colossus and Onslaught from Colossus Biography and Onslaught Biography. Find out all about Colossus and Onslaught.# Check out how is Colossus unique and distinct from Onslaught. Discover their love interest, sidekicks, family tree and the movies and games list in which Colossus and Onslaught have appeared. Find out everything about them here!