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