Have Swamp Thing and Poison Ivy ever interacted?

Yes they have actually. It was in the injustice prequel comics. There was a magical fight between Mr. Mxyzptlk and Trigon. The fight caused magical fires to burn around the area. read more

Yes they have actually. It was in the injustice prequel comics. There was a magical fight between Mr. Mxyzptlk and Trigon. The fight caused magical fires to burn around the area. The plant life burning caused swamp thing to summon poison ivy out of pain and they both worked to put out the fire. read more

Swamp Thing. I'd love to see him in the game, so I guess this is a nice glimmer of hope. read more