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