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