PoisonFrost

PoisonFrost is the femslash ship between Pamela Isley and Caitlin Snow from the DC Comics and DC Super Hero Girls fandoms.

Canon
Both Poison Ivy and Killer Frost are DC villains of two separate rouge galleries and cities they reek habic upon. Along with the two being well known for their dangerous kisses, as Frost's icy kiss is known to freeze people to death while Ivy's are mostly used for mind control; but there have been moments where she have delivered a poison kiss to her attended target. The two have also been known to have a background or knowledge of science. The interactions between them are limited, part from when villains like them join together to fight the Justice League, to create chaos for kicks or for simple DC villain get togethers that don't involve chaos-like moments or plainings. Like Ivy's first wedding in the 2019 Harley Quinn animate series.

DC Super Hero Girls
The 2015 series has both DC characters learning how to be heroes than villains at Super Hero High. Because Ivy spent most of her time in the school's greenhouse she didn't take the time to get to know the other students, like Frost has. When Ivy was asked to join a club she picked the science club Frost founded with Flash. Since Ivy already has an interest in the field she fitted right in and became friends with Frost. Who helps Ivy with her plant related projects, as they show it to off at their next club meeting. Both Frost and Ivy are seen smiling at one another when Ivy tells Frost that "clubs are fun." Since then there have been a few moments where Frost and Ivy can be seen standing beside one another or simply hanging out together.

Their new friendship even got Frost to attend Ivy's flower dancing show, despite feeling under the weather she didn't want to miss it. Even though Frost's icy sneezes accidently destroys the flowers Ivy was using for her show, she still helps Batgirl and Bumblebee to nurse their friend back to health. Before her cold could create another ice age. Ivy tries to give Frost a plant blended drink that is known to help with colds, but Frost ends up freezing it to Ivy's hand when she sneezed. Despite Frost's freezing ice sneezes have their nursing attempts fail, Ivy and the others stayed by her side. The next morning they were all exhausted and ended with Frost's cold, while Frost herself was all better. Similar to how Frost's cold had her sneezing ice, Ivy's has her sneezing out a small group of leaves.

Moments

 * Harley Quinn (2019)
 * Frost is seen as one of the guests at Ivy's wedding to Kite-Man.

Fanon
This DC ship is very rare, due to the limited interactions between them and is mostly seen as a crack ship. From how Ivy require warmth for her plants that can't survive cold temperatures, while Frost's ice powers has her live her life in the cold than the warmth heat. Making this rare DC pairing an opposite-attract ship. PoisonFrost has some support in the Gen1 series of DCSHG, once people saw the friendship the two have forged through their interest in science and being club mates. Who have banded together more than once to aid their friends through the knowledge of science.

Even though the two are villains, some people like to feature the both of them as heroes. From how DC universes and medias, like the first version of the DC Super Hero Girls universe has proven that both Ivy and Frost can be heroes. Along with a few of their many DC media or earth counterparts revealing that the two are capable of good than just evil alone. It has inspired a small group to keep featuring them as heroes in their AU's or headcanon blends.

Fandom

 * TUMBLR

Trivia

 * There is another DC Universe that has the two be viewed as heroes. From how Ivy used her powers to save the Amazon rain forest, while Frost managed to re-freeze the polar ice caps.
 * Even though the two have appeared in the Arrowverse, their paths haven't cross with one another.