Doomsday is a fictional supervillain appearing in American comic books published by DC Comics , commonly as one of the deadliest foes of Superman , as well as the Justice League. Doomsday was conceived in during an annual brainstorming session with the editors and writers of Superman comics, in response to a concern by some writers that most of Superman's foes at this point either relied on technology or their intellect to outmaneuver Superman or had some natural advantage against him, wanting to create a new foe with great physical power to match him. Several writers proposed having Superman die at the hands of a "bestial foe", and editor Mike Carlin scribbled this idea on the wall chart as "doomsday for Superman". Inspired, they chose "Doomsday" as the name for this villain.
A weapon crafted in the most extreme conditions imaginable, Doomsday is an ultimate and unstoppable force of destruction and devastation. Long ago, scientists on the planet Krypton engineered a creature to be the ultimate weapon. This creature, the Ultimate, had no purpose except destruction, and made his way across other planets before finally being defeated.
In the early days of the planet, Krypton was a violent, hellish world where only the absolute strongest of creatures could survive at the time, the world's dominant lifeforms were said to be the most dangerous creatures in the universe. Doomsday's creator was a mysterious alien named Bertron , who wished to create the ultimate life-form. To do so, Bertron and his team sent a baby onto the surface of the planet, where it would be instantly killed by the harsh environment or the vicious creatures inhabiting it. Each time, whatever of the lifeform's remains that survived were harvested and used again, to create a better, stronger version than the previous. In short, the mad scientist was using the method of cloning to accelerate the evolution of the being he was creating.
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