Harley, forcing the double to sacrifice herself to save Harley and stabilize Ivy's sanity. Harley Quinn comic Harley Quinn features Ivy as Harley's best friend and then lover. Ivy has helped Harley out on several adventures between her ecological terrorism gigs back in Harley's new home on Coney Island. She helps Harley explain to the local assassins that Harley posted her own bounty while sleepwalking and that trying to kill her would just lead to their deaths and no pay day. Harley rescued her from a super villain's mind control while Ivy was secretly held prisoner and used by said villain in Arkham. She assisted in hiring the Gang of Harleys and nursing Harley back to health when Captain Strong's mutant possibly alien seaweed put her in the hospital. She and Catwoman joined Harley on a road trip when Harley's uncle died and found that while both she and Harley are immune to most toxins, that does not include some secret drink brewed up on an Indian reservation. She and Harley were invited to spend a romantic week in Bermuda on a nudist colony by Sy Borgman. When there was a dispute over some real estate Ivy helped turn it into protected swampland. Also, when the Penguin attacks New York with giant killer penguins, she helps defeat him by growing a giant daisy in what their friend Eggy calls "the worst Kaiju fight ever." Activism Ivy calls herself an "ecoterrorist of global importance" and has demonstrated philanthropic contributions to conservation efforts. The Gotham Girls episode "Pave Paradise" has her going out of her way to get Gotham's mayor to prevent bulldozing of a park because he swore he would not do it in his election campaign. In Gotham City Sirens, Ivy reveals that she donated her $30 million share of Hush's money to a reforestation fund. Powers and abilities Initially thought to have been transformed by human experiments, Isley is later revealed to be gifted by the Green, an interplanetary force which grants her a supernatural control over plant life, enhanced strength and stamina, the power to transfer poison through touch, complete immunity to all toxins and poisons, and the ability to project mind-controlling pheromones. With the latter power at its full potential, she proves capable of controlling every person on Earth, including other super-powered beings. If her mind-control spores are laced with Kryptonite, Ivy can affect and control Superman