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