Darkseid officially replaced as the ultimate anti-life villain
Darkseid is usually one of the most fearsome villains in the DC Universe, but he's just been replaced by someone more powerful.

Warning: Contains spoilers for DCeased: War of the Undead Gods #5!
As the embodiment of evil, Darkseid has long been the main antagonist of the DC Universe and has played a major role in the events of multiple Crisis levels. However, even Darkseid isn't invincible, and a super-powerful foe just robs him of his place as the ultimate incarnation of the Anti-Life.
In Tom Taylor and Trevor Hairsine's DCeased: War of the Dead Gods #5, readers get to see a truly grisly scene unfold. When the undead army attacks Green Lantern Kilowog's home planet, Superman convinces his old nemesis, Mr. Mxyzptlk, to help save it. Between Superman's incredible strength and Mxyzptlk's reality-warping abilities, the undead shouldn't pose any threat. But unfortunately, Mxyzptlk's immense power made him overconfident, and Darkseid was able to infect him.
Mr. Mxyzptlk is an imp from the fifth dimension. Because of this, the magic he uses doesn't have to obey any known rules or logic. Mxyzptlk is perfectly capable of not thinking about a person, completely erasing them from reality, or doing ridiculous things like creating anything he can imagine from nothing, and rewriting the laws of physics. Darkseid is incredibly powerful in DCeased thanks to his new zombie Form, this power is insignificant compared to that of Mxyzptlk.
Mr. Mxyzptlk Is The Most Dangerous Zombie Yet

Mxyzptlk is without a doubt the most powerful zombie ever under the control of the dark god Erebos. With the magic of Mxyzptlk, there's nothing stopping Erebos from completely obliterating Superman or anyone else trying to stop the spread of the Virus Anti-Life. Infected heroes have proven in the past that they're perfectly capable of continuing to use their powers - readers have seen this when Superman, The Flash, Wonder Woman, Martian Manhunter, and Green Lantern were infected. With Mxyzptlk infected, Erebos unleashes a great darkness in the universe, and it seems only the power of the Specter - an aspect of DC's supreme power - is even able to try and fight.
Darkseid is one of the greatest threats in the DC Universe, and his powers allow him to stand against the entire Justice League, if not every hero on Earth. But as powerful as Darkseid is, his power is still constrained by reality. Mxyzptlk may not possess the physical strength of Darkseid, but he is capable of completely rewriting or erasing things in reality idea. There's no reason Mxyzptlk couldn't simply assume that everyone left was infected, and like that, Erebos would win. That's why, as terrifying as Darkseid may be, Mxyzptlk is now the ultimate anti-life force villain.
MORE: Wonder Woman's Nemesis Kills Darkseid With A Fact