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