In their attempt to destroy Batman, Hush and the Riddler manipulated several other villains into unwillingly helping them. These included the Joker, Harley Quinn, Two-Face, Poison Ivy, Scarecrow, Killer Croc and Clayface. They even manipulated some of Batman's closest allies (Superman, Huntress, and Catwoman) against the Dark Knight, utilizing such methods as Poison Ivy using her pheromones to control the Man of Steel and Catwoman and Hush's seemingly benevolent funding of Huntress's vigilante activities. Part of their plot included fooling Bruce into believing the Joker had murdered Tommy; Clayface shapeshifted into Tommy's corpse in order to create this illusion.
