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