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