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