Doomsday is a powerful villain in the DC Comics universe, known for his incredible strength and ability to adapt to almost any situation. Created by writer-artist Dan Jurgens, Doomsday made his first appearance in "Superman: The Man of Steel" #18 in 1992.

Doomsday was originally created by an alien scientist named Bertron on the planet Krypton. Bertron had a theory that by exposing a being to the harsh conditions of Krypton's environment repeatedly, he could create the ultimate survivor. He subjected an infant to this process, killing it in the process. The process was repeated over and over again, with each new iteration being stronger and more resilient than the last. Eventually, the creature that would become Doomsday emerged, having adapted to the harsh environment of Krypton.

After killing Bertron, Doomsday set out on a path of destruction, laying waste to anything in his path. When he arrived on Earth, he encountered Superman and the two engaged in a brutal battle that resulted in both combatants dying. However, Superman was later revived, while Doomsday returned in various forms, each time posing a significant threat to the heroes of the DC universe.

Doomsday's powers include incredible strength and durability, as well as the ability to adapt to any situation he encounters. He is virtually indestructible, able to withstand attacks from even the most powerful heroes in the DC universe. His strength and durability make him a formidable opponent, while his ability to adapt makes him a dangerous threat in almost any situation.