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