Lobo killed all the other Czarnians with a plague. (He claimed it was a science project and gave himself an 'A'). Since then he has traveled the galaxies collecting bounties. Lobo has a strict code of honor when it comes to these agreements. Along the way he has met and battled a number of superheroes.
Lobo played a provincial role in the Citadel War. He was hired by the Citadel's human agent Harry Hokum to capture the Euphorian known as Kalista in a bid to learn the secret behind her home world's planetary shield. Along with fellow bounty hunters Bedlam and Berserk, he raided the mothership belonging to the Omega Men where upon he engaged in combat with Kalista.
Soon after, Harry Hokum hired Lobo once again, this time to assassinate the Omega Men's interim leader Tigorr. Lobo never had the opportunity to complete the contract however.
After the Citadel War ended, Lobo was then hired by Kalista's husband Primus to help them infiltrate a Citadel prison facility and free several of Primus' captured allies. During the prison break, Lobo killed the supreme commander of the surviving Citadel military forces.
Lobo eventually turned his back on his violent ways and became an archbishop in the First Celestial Church of the Triple Fish-God. He became a protector of sorts to a massive colony of refugees from Sector 3500. He also gained possession of the Emerald Eye of Ekron.
He happened to arrive in an asteroid field just in time to kill Devilance, rescuing Animal Man, Adam Strange, and Starfire, who were stranded in space. Starfire negotiated a deal with him, in which he would help them out of their predicament if they helped him with his problems.
Powers & Abilities
Lobo possesses extraordinary strength of undefined limits. His strength, much like his other powers, varies greatly depending upon different artistic interpretations of various comic book writers. In some instances, he is depicted as being barely stronger than a human while, in others, he demonstrates physical strength on a similar level as Superman. Lobo also possesses superhuman durability, which varies greatly as well. Lobo is depicted, in some situations, as being injured by conventional bullets while, in other situations, he has the physical resiliency to stand toe to toe with Superman, survive unprotected in deep space, and withstand powerful explosive blasts without sustaining injury. He has displayed particular susceptibility to gaseous chemicals.
If Lobo sustains injury, his accelerated healing factor enables him to regenerate damaged or destroyed tissue with superhuman speed and efficiency, and little apparent pain. Lobo also is functionally immortal. He is immune to the effects of aging and disease and he has been banned from entering either Heaven or Hell. As such, even though he can sustain sufficient injury to be out of commission for quite some time, he will apparently heal from any injury, given sufficient time. For instance, Lobo can regenerate out of a pool of his own blood, apparently recycling the cells. At one time, Lobo could grow a copy of himself, possessing all of his skills and powers, out of every drop of his blood that was spilled. This power, however, was removed by Vril Dox, during Lobo's time with L.E.G.I.O.N.
Lobo possesses an amazingly developed sense of smell, which allows him to track objects between solar systems, as well as a separate tracking ability enabling him to track an individual across galactic distances.
Lobo is a formidable combatant with expertise in multiple forms of armed and unarmed combat. His favorite weapon is a large chain he keeps wrapped around his right wrist with a large gutting hook connected at the end, which he typically uses in hand to hand combat. At times, he also uses high-grade explosives and advanced firearms.
Despite his violent and loutish nature, Lobo seems to have a genius level intellect in matters of destruction and violence. He can create complex virulent agents and the necessary antidotes to them such as the one he let loose on Czarnia, resulting in the deaths of the entire population in the span of one week.
It is not fully known the extent to which his powers are common for his race or unique to him. In the miniseries The Last Czarnian and elsewhere, it is stated that the cloning and healing abilities are traits possessed by all Czarnians, as is the apparent ability to survive in the vacuum of space.
Hooked chain, various guns, frag grenades, blades and just about anything he can get his hands on.