The Batman Who Laughs is a Multiversal version of Batman from Earth -22 of the Dark Multiverse.
- The Batman Who Laughs first appeared in Dark Days: The Casting #1 (September, 2017)
- Bruce possesses a set of joker cards forged out of Cosmic Metallurgy; a material found in the Dark Multiverse that can manipulate reality to the holder's whim.
- The eyes of The Batman Who Laughs can see through the membrane of the Multiverse into the Dark Multiverse to see the things that people fear and desire. He uses a visor made of Dark Metal to filter out the dark energy and the noise in order to focus on what he wants to see.
- Each member of the Dark Knights are a representation of Batman's worst fears and regrets. The Batman Who Laughs represents Batman's fear of becoming as bad as the Joker, how much he is defined by the never-ending war with the Clown Prince of Crime and his regret he cannot stop the Joker for good without killing him.
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