The Batman Who Laughs is defeated when the Prime Universe Batman is aided by the Joker, who notes the alternate Batman's failure to perceive this scenario due to still being a version of Batman.
After gathering up his forces to fight the Justice League, the Batman Who Laughs fought against the Justice League and was killed by Wonder Woman using a chainsaw built using parts of the Invisible Jet.
However, before he could react, the Batman who laughs killed him, taking his body and putting his brain into the Bruce Dr Manhattan body giving him ULTIMATE POWER!
The Batman Who Laughs created a universe on his own, showing his truly cosmic potential. This omnipotent and nearly all-powerful figure emerged from the Dark Multiverse and is perhaps the most powerful Batman variant in comic book history.
Superman is superlatively tough and strong, but the Batman Who Laughs is Batman. Batman knows how to beat Superman. The argument can be made that Batman only wins because Superman is his friend and goes easy on him, but the reverse is also true.
Despite the Hulk's overwhelming and seemingly unlimited strength, The Batman Who Laughs has fought against far more powerful beings. He may not slay the Hulk, but The Batman Who Laughs can execute elaborate plans that puts him in an advantageous position.
So, the Batman Who Laughs is a schemer who prides himself on his planning skills. It's quite feasible that given enough time and resources, he could come up with surefire methods to neutralize most of the Avengers. However, there are some members of the team that he would find very hard to deal with.
After absorbing Wally West's Manhattan powers, his power drastically increases. Like other inhabitants of the Dark Multiverse, The Batman Who Laughs has a weakness to Nth Metal.
Before Superman could do anything, Laughs quickly pulled out some black kryptonite. Infecting Superman and his son with a mad rage, the two heroes killed Lois Lane before dying as a side effect of the space rock. It is mentioned that this twisted Batman had used the same tactic to take care of Supergirl as well.
He was defeated by Wonder Woman by being thrown into the Sun. How did Wonder Woman defeat the Darkest Knight? She is able to push Darkest Knight to the last sun called the Death Sun. This sun is where everything, all the stories and Earths, will come to when everything ends.
When The Beyonder has full power, he could easily beat Dr. Manhattan. Everything that Beyonder proved he could accomplish — including destroying all multiverse — supersedes what Dr. Manhattan had even accomplished in DC's Rebirth.
Can the Batman Who Laughs beat the Justice League?
The Dark Multiverse is home to the evilest version of Batman as the Batman Who Laughs proved that The Dark Knight could kill the Justice League with enough prep time.
While the Batman Who Laughs is strong and fast, something about the Joker toxin that transformed him also shrank his musculature. The Batman Who Laughs physically looks like the Joker—a slimmer specimen than he was while he was Batman.
The darkest knight easily stomps black Goku. The Darkest knight held 57 universes in his hand without trying. The Darkest knight Out sped Wally west who is 1.89 octillion times faster than light. The Darkest knight could survive super nova explosions.
The Nightmare Multiverse fusion of Batman and Joker was created by Scott Snyder and Greg Capullo. The Batman Who Laughs led the Nightmare Batmen to war against Prime Earth. Working for the bat-demon Barbatos and then multiverse god Perpetua, the Batman Who Laughs was a straight-up, unrelenting villain.
Black Kryptonite takes this entire struggle away, and makes the inner demons come out in the form of a truly evil version of the Kryptonian. This can be abused, and our scholars have told us that in an alternate universe, The Batman Who Laughs once used this terrifying tactic to achieve his goals.
When counting down the most powerful DC cosmic characters of all time, the number one has to be DC's version of God, known as The Presence. While there are numerous Gods in the DC pantheon, mostly from the Greek versions of Zeus and his offspring, the Presence is more powerful than them all.
The fact that he gained Doctor Manhattan's godlike powers to become the Darkest Knight defenitely played a part in his perception as "overpowered." Combine this with the above-mentioned smugness and it's easy to see why some people might find him annoying.
What is the strongest feats of the Batman who laughs?
At his strongest, the Batman Who Laughs could travel through time, space and the multiverse at will and possessed cosmic awareness. He also had complete molecular control over his body and could create copies of himself, in addition to giving himself powers like super-speed and super-strength at will.
The Batman Who Laughs very nearly destroyed the DC Multiverse, the perfect fusion of Bruce Wayne's methodical mind and combat skills combined with Joker's absurd sadism and lack of morality.
The Batman Who Laughs is a grave threat, but Wolverine would be able to beat him. It's all about Wolverine's ability to take damage. Given enough time, the Batman Who Laughs would be able to figure out how to overcome those advantages but Wolverine wouldn't give him that chance.
It is revealed in The Batman Who Laughs miniseries that Laughs has the ability to sense people's urges, which can be used to find what he desires. However, he needs to wear a visor made of Dark Metal in order to focus his senses and pinpoint what he is searching for.
