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