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