is a comic book series published by DC Comics, written by Scott Snyder with art by Jock. The character, an evil, alternate-universe version of Batman, first appeared in the 2017 crossover storyline Dark Nights: Metal.

The character is a hybrid of Batman and the Joker, resulting from a Joker toxin infecting the Bruce Wayne of Earth-22 in the Dark Multiverse. This villain possesses Batman's intellect and tactical genius combined with the Joker's sadism and nihilism, making him a ruthless and unpredictable mastermind.

The seven-issue miniseries follows this terrifying villain as he enacts a sinister plan across the Multiverse, coming to Gotham City to turn it into an "incubator for evil". The story explores themes of fear, morality, and what happens when Batman's unbreakable rule against killing is violated, as that is the very action that created this villain. The series also introduces another dark version of the hero, the Grim Knight.

The search results for visually similar images show different versions of the comic book, including variants and different issues in the series.