Doomsday (Canon, Post-Crisis)/Paleomario66

Summary
Doomsday was created on a prehistoric Krypton thousands of years ago by a scientist named Bertron as a bio-mechanical super-soldier and living weapon of mass destruction. This process involved Bertron cross-breeding the artificial birth of a Kryptonian hybrid, left to fend for itself in the more harshest environments of the Kryptonian wilderness with creature killed and its genetic material collected to create a more resilient clone. This process, along with a further cross-breeding with the DNA of the strongest creatures on Krypton, was repeated over and over for decades as a form of accelerated natural evolution. The agony of these repeated deaths was recorded in the genes of Bertron's final creation, driving the creature insane and to follow one overwhelming instinct: destroy everyone and everything in sight. When the creature proved too difficult to control, the Council discontinued Bertron's experiments and banned all forms of cross-breeding while having the creature jettisoned into the Phantom Zone. However, the beast acted in his final moments of consciousness to change the stasis cell's trajectory and it eventually crashed on Earth, the force of the impact driving it deep underground. The beast slept for centuries before finally reviving and bursting free. Dubbed "Doomsday" by Booster Gold, the beast is still motivated by his instincts to kill everything around him yet has a greater obsession to kill all Kryptonians.

Powers and Stats
Tier: 4-A

Name: Doomsday

Origin: DC Comics

Gender: Male

Age: Thousands of years old at the least

Classification: Alien

Powers and Abilities: Superhuman Physical Characteristics, Reactive Evolution (Grants him resistance to things that he's survived and also allows him to gain new powers, such as controlled bone growth, fire breath, resistance to telepathy, and the ability to harm intangible beings), Regeneration (Low-High), Immortality (Types 1 and 3), Resurrection

Attack Potency: Multi-Solar System level (Consistently shown as at least comparable or even superior to Superman)

Speed: Massively FTL+ (Consistently depicted as being able to keep up with Superman)

Lifting Strength: Unknown

Striking Strength: Multi-Solar System Class (Shown to outmatch Darkseid and Superman during "Hunter/Prey", and held the upper hand against the entire Justice League during "The Doomsday Wars")

Durability: Multi-Solar System level (He shrugged off Post-Crisis Darkseid's Omega Effect and numerous hits from Superman throughout their fights, though he was destroyed by the entropy at the end of time), his regeneration and reactive evolution make him very difficult to kill

Stamina: Unknown

Range: Planetary

Standard Equipment: Nothing notable

Intelligence: Doomsday is capable of instinctively processing information extremely quickly, though he is simple-minded for the most part.

Weaknesses: No notable weaknesses