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