An evil amalgamation of Batman and Atrocitus from the Dark Multiverse, Batrocitus joined forces with The Batman Who Laughs' team of Dark Knights in their attack on Earth-0. After their victory, he was assigned to guard New Apokolips, a hellish world where the majority of Earth's remaining Superheroes are imprisoned. Planning to free the Superheroes, Wonder Woman, Batman, and Harley Quinn crash land on the planet, and Batrocitus and the Dark Knights go to investigate. There, they find the undead Jonah Hex, right when the zombie gunslinger is detonating explosives, destroying them all.