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