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