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