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