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