A 600 million year old mutant organism from another planet, Lunatik eventually consumed all life on his own planet and escaped on a space ship that arrived from Interstellar Church of Perpetual Annoyance. He became a mercenary partnered with Skreet, then Space Pope. Eventually the Space Police arrested him for his many crimes.
A prison ship holding Drax, Lunatik, Blood Brothers, and Paibok crash lands near Coot's Bluff, Alaska. Drax is killed after Paibok assumes the form of Thanos and distracts him long enough for the others to kill him.
Eventually, Lunatik turned Skreet over to the authorities after she demanded half the money for various jobs the two performed together. Lunatik himself was also captured and was placed aboard a prison ship traveling to an unknown destination, presumably to place Lunatik on trial. The ship veers off course and crash-lands on Earth, somewhere in the Alaskan wilderness. Sometime between his capture and the ship crashing on earth, Lunatik undergoes a mysterious and noticeable decrease in some of his powers. His hair and eyes change color and he loses a significant amount of muscle mass. Lunatik formed an alliance with other survivors of the crash, Paibok and the Blood Brothers, against Drax the Destroyer. After a brief struggle, the prisoners manage to overwhelm and kill Drax, though he is later reborn in a less powerful but much more cunning and ruthless form. He tracks down some of his killers and is able to slay one of the Blood Brothers and decapitates Lunatik. Lunatik is still alive, momentarily, but Drax crushes his head and prevents him from recovering.
Progressive Mutation: Lunatik is a being that has evolved at a slow but steady pace over hundreds of millions of years. His body possessed a type of progressive mutation that steadily increased all of his attributes steadily over periods of time. Lunatik's mutation also granted him an ability to adapt to nearly any type of situation or environment if he is exposed to them on enough occasions or for a suitable length of time.
Superhuman Strength: At his peak, Lunatik possessed vast superhuman strength of undefined limits. Ultimately, he was able to lift far in excess of 100 tons. However, after undergoing a severe depletion in his powers for reasons unrevealed, his strength was dramatically decreased. At the time of his death, he was only able to lift around 75 tons.
Superhuman Stamina: Lunatik's advanced musculature was much more efficient than that of a human being. As a result, his muscles produced considerably less fatigue toxins during physical activity than those of a human. At his peak, he could exert himself for weeks potentially before fatigue began to impair him. After being depowered, his stamina dwindled to the point where he could push himself at his peak for roughly 24 hours before the build up of fatigue toxins in his blood impaired him.
Superhuman Durability: At his peak, Lunatik was extremely resistant to all forms of conventional physical injury. Lunatik could withstand high caliber bullets, falls from thousands of feet, tremendous impact forces, exposure to temperatures ranging from several thousand degrees Fahrenheit to hundreds of degrees below freezing, powerful energy blasts and exposure to the vacuum of space without being injured. He could hold his breath for extensive periods of time, allowing him to remain in outer space unprotected for considerable lengths of time. Due to his progressive mutation, it was possible for him to be injured by some form of weapon or attack but be immune to it at a later time. After his depowerment, Lunatik became much more vulnerable to injury. However, he was still highly resistant to impact forces. He could withstand impacts, such as falling from great heights or being repeatedly struck with superhuman force, that would severely injure or kill a human with little to no injury to himself.
Regenerative Healing Factor: Lunatik possessed a highly advanced healing factor that allowed him to fully recover from virtually any type of physical injury. He could regenerate large amounts of destroyed tissue within a matter of minutes, sometimes seconds. For reasons yet unexplained, he was even capable of surviving decapitation and could heal the damaged tissue done to his head and neck if his head were held in its proper place back on his body. For all intents and purposes, Lunatik was virtually immortal in the sense that his healing factor, as a result of his body's progressive mutation, rendered him immune to the effects of aging and to any known disease.
Lunatik was a formidable combatant, having had millions of years of experience in numerous forms of hand to hand combat. While he preferred hand to hand fighting, he was also a skilled marksman with a number of advanced firearms.
Lunatik underwent a mysterious decrease in a number of his superhuman powers sometime between his capture and being killed by Drax. Lunatik's ability to recover from physical injury depended upon his brain being in tact since he died after Drax crushed his head.