Do you want to compare X-23 with Cassandra Nova? Discover the powers, weakness & weapons of X-23 and Cassandra Nova from X-23 Biography and Cassandra Nova Biography. Find out all about X-23 and Cassandra Nova.# Check out how is X-23 unique and distinct from Cassandra Nova. Discover their love interest, sidekicks, family tree and the movies and games list in which X-23 and Cassandra Nova have appeared. Find out everything about them here!