Poison_Ivy_

Poison Ivy is a super-villain and eco-terrorist with the ability to control plants, usually an antagonist to Batman. Originally she was botanist Pamela Isley working underneath professor Jason Woodrue until an accident gave her powers and turned her insane. Protecting the sanctity and supremacy of nature at all costs, she sadistically lashes out against humanity as a blight upon the planet. Frequently she teams up with her best friend and partner in crime, Harley Quinn.

Recently she has taken up residency in the Nexus due to a recent events. Joker was tired of sharing Harley and decided to do away with her. He made Harley trick Ivy into going to STAR labs and telling her she wanted to run away with Ivy to a place Joker couldn't find them but was pushed through an experimental interdimensional portal that sent her to the Nexus. Harley tossed a note and a rose explaining the Joker put her up to it and that if she didn't he'd end Ivy personally.

Ivy was bitter at first but she couldn't stay mad at Harley. The poor girl was helpless against the Joker. Eventually she adapted to her environments and Ivy grew to love the Nexus. Voring took some getting used to but she quickly became a natural at it. She still misses Harley but she knew a bit about the multiverse and figured there would be other Harleys, ones that one betray her.