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