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