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