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