Pamela Isley (Batman's Poison Ivy) is a botanist. She has a fierce interest in preserving endangered vegetation and might conceivably bond with Swamp Thing as the anthropomorphic embodiment of The Green.  Okay, so this is a major departure for the character, but say that her resonance with the plant kingdom becomes even keener, to the point where she can literally communicate and empathise with plants, as well as psionically influence them (chloropathy and chlorokinesis).  She takes a trip to the Amazon Jungle and the deforestation there drives her insane. Accordingly, she becomes a heavy duty misanthrope, vowing to preserve the sanctity of plant life at all costs.  Using her newfound chlorokinetic abilities, she mutates the cordyceps fungus, ramping up its parasitic capabilities from ant parasitism to human parasitism. Okay, I know that sounds a lot like the premise for HBO's The Last of Us, but this takes place in a DC universe. However, in a twist, it's not Poison Ivy versus the DC Universe. Some of DC's greener heroes, such as Animal Man and Swamp Thing are torn. Black Orchid sides with Ivy, given she's also a human/plant hybrid herself. Solomon Grundy is also enlisted to assist Ivy. Jason Woodrue (the Floronic Man) also rises to the cause. Amongst the more traditional superhero community, Green Arrow has a crisis of conscience, given the circumstances of Ivy's metamorphosis and his leftist politics. As this is an Infinite Earths story, nothing is certain until the very end. Will Ivy and her Green Phoenix contingent succeed or can the DC mainstream rally?