Stephanie and Cassandra tried to save Harley Quinn from a team of Jokerized (infected with venom from The Joker, driving them insane) villains in Joker: Last Laugh (3). They included Carnivora, Dervish, Killer Frost and Phobia. Killer Frost trapped the pair of girls, along with Harley, in ice. Fortunately, they got rescued by Power Girl.

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