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