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