Batman Who Laughs

History
Origin

The Batman of Earth -22 was drugged and captured by the Joker who went on to destroy Gotham City. The Clown Prince Of Crime killed Batman's entire rogue's gallery, murdered Jim Gordon by dissolving him, set the city alight by blowing up various buildings, and had his goons line up families so he could kill the parents and infected their children with Joker toxin, all in front of Batman. The Caped Crusader eventually managed to break free of his bonds in a murderous rage and brutally beat the Joker before snapping his neck, killing him.

Two days later, Batman explained to Superman that the reason Joker went so far was that he was dying from the chemicals that transformed him many years ago. However, although Joker succeeded in making him break his “one rule”, Batman refused to let that turn him into a monster like the clown wanted. With the GCPD and Arkham Asylum in ruins, Superman had the “Jokerized” children quarantined at S.T.A.R. Labs while Batman returned to the Batcave to begin running some tests.

Three days later, the whole Bat Family besides Robin were in the Batcave going through some very vigorous training. Nightwing knew that something was troubling Batman and the Dark Knight revealed that he was exposed to a new strain of nanotoxin that had been inside the Joker’s heart and was released when Joker was killed. The toxin slowly rewrote Bruce's mind to become more like the Joker's, which lead the Bat Family to deduce they were training to fight Batman. However, Batman claimed that the real reason why he brought them to the cave was that they would be the first to stop him, before suddenly revealing a pair of rifles and shooting the Bat Family dead.

One week later, Batman had killed the entire Justice League aboard the Watchtower except for Superman and his family. Batman told the Man of Steel that he intended to use all the weapons they have confiscated over the years against the world just because he wants to since he no longer feels he has to hold himself back anymore. Superman responded that the world would rise up to stop him, but this claim just added to Batman's amusement. The Bat then revealed his new family of Jokerized Robins, among which was his son Damian Wayne, before exposing Superman to Black Kryptonite, claiming to have done the same thing to Supergirl previously, causing him and his son John to kill Lois Lane in a berserk state before dying themselves as part of the side effects.

Eventually, the world fell to Batman after he brought down all manner of opposing forces, ranging from armies to gods. Bruce believed he could not sink any lower until he met Barbatos, who showed him the nature of the Dark Multiverse and the existence of the central Multiverse above it. Batman was then tasked by Barbatos to locate his counterparts on other Earths to form a group of Dark Knights, which he will lead as The Batman Who Laughs, and aid in the deity’s conquest of the central Multiverse.

Dark Nights: Metal
The Batman Who Laughs appears when Barbatos sends him to bring the Red Death of Earth -52 as a member of the Dark Knights, informing him that he could make a home for himself including the other former superheroes of the Dark Multiverse into the multiverse. After they defeat Cyborg in the Watchtower, The Batman Who Laughs elaborated the reason they were summoned into and it was due to a great ringing and that they were needed there to help save the world.

After Barbatos and the Dark Knights arrive on Prime Earth thanks to the Court of Owls, The Batman Who Laughs takes control of Gotham and rules over it from Challengers Mountain. In order to cause chaos, The Batman Who Laughs gave unique cards made of Cosmic Metallurgy to several enemies of Batman. They were The Riddler, Poison Ivy, Mad Hatter, Bane, Mister Freeze, and Firefly. The cards the supervillains received allowed them to manipulate reality itself. Due to this advantage, they take over and ruled over different sections of Gotham.

The Batman Who Laughs later confronts Superman, who alongside Wonder Woman escaped their imprisonment on the giant tower in Metropolis, and explains that although he is Bruce Wayne, he decided it was better to let Arkham's inmates rule the city. Superman tries to get him to see reason but to no avail when The Batman Who Laughs tells him that his version of Superman said the same thing before he murdered him and his family. While The Devastator fought Superman, The Batman Who Laughs explained how each world in the Dark Multiverse is formed through the fears and hopes in the minds of beings from the Multiverse and uses Destroyer's history as an example. He also revealed that each member of the Dark Knights had killed their version of Superman (which could indicate Bruce's fears or his hidden desire). Superman tries to fight them but is unable to due to the Dark Knights consisting of dark matter, making his punches ineffective. However, the Flash is able to save Superman before The Destroyer can kill him and they escape the Dark Knights by going through a portal.

The Batman Who Laughs along with the rest of the Dark Knights attacked the Oblivion Bar and killed Nightmaster. While the Oblivion Bar is burning, The Batman Who Laughs gets The Dawnbreaker to play a song on the jukebox and works despite it's on fire. As they are listening to the song, Superman breaks the barrier between the Phantom Zone and the Dark Multiverse, confident Kendra was wrong about it being a trap. When he takes stock of his surroundings, he sees a dark tower shaped like an S, in which Superman realizes at that point it was a trap. Then, three decrepit Supermen subdue him, and he hears someone ask him why he came which is then revealed to be Batman, who is almost completely drained of life. Superman explains that he got his message, but Batman reveals that the message he picked up was Barbatos deceiving him all along. The real message from him was actually hidden in the song from his last vision. The notes from the song "the Super Sons" played were ordered in the reverse of his emergency code as a warning not to come for him. As The Batman Who Laughs toasts over Superman's defeat, it's revealed that the final component needed to complete Barbatos' plan was the energy stored in Superman's cells. As Batman becomes engulfed in dark energy, he states that Barbatos was right about everything leading back to him in the first place and that everything will now be submerged in total darkness.

Eventually, the Dark Knights successfully capture all members of the Justice League and took them to Champions Mountain in Gotham City, where Barbatos resides. The Batman Who Laughs mocks the league by comparing them to the same superstitious and cowardly criminals he once fought. However, Cyborg gains a multiversal upgrade from the Mother Box built within him and uses it to free the leaguers (and other heroes) before transporting them all to Hypertime. Barbatos expresses his displeasure for this turn of events and berates The Batman Who Laughs, telling him that despite his team's preparations for every scenario, Cyborg's new upgrade brings an unknown element into play. But The Batman Who Laughs is not worried since as long as they have teams like the Suicide Squad and Teen Titans at their mercy, the league would return.

Sure enough, after coming up with a plan of their own, the Justice League re-emerged and split up in an attempt to find Nth Metal, which is deadly to those from the Dark Multiverse. Unfortunately, the Dark Knights had expected this and used the heroes to locate the metal before ambushing each of them. The Batman Who Laughs attacks Wonder Woman at the Rock of Eternity after she foun

Powers and Abilities
Cosmic awareness

Dimentiokinesis Expertise in escape art. Various gadgets Illusions Genius-level intellect Organizing Has custody of a power item Reality-warping Variety of weaponry