[1] The first Superman character was created by writer Roger Stern and artist Curt Swan, and first appeared in Action Comics Annual #2 (1989).

The character was "resurrected" in Action Comics #693 (November 1993) and then featured regularly in Outsiders, first appearing as a member of the team in issue #3.

When a small group of these aliens arrives on the planet Krypton, they are met by the militant Kem-L, who kills them and corrupts one of the devices.

[clarification needed] This is connected via four thin mounting brackets to a glossy orange tail fin section of equal length.

The ten equally spaced fins each have the shape of a pointed quarter ellipse, with the tapered end extending slightly beyond the rear of the body tube.

When a group of Kryptonian explorers leave Krypton in search of a new planet to colonize, the Eradicator alters their birthing matrices and makes them fatally allergic to lead, thus creating Daxamites.

[citation needed] To further ensure that nobody left Krypton, the Eradicator alters Kryptonians by encoding in them a genetic defect so that they will instantly perish if they leave their world.

[3] With the device, the two exchange memories - which explains that Kal-El was able to leave Krypton thanks to genetic treatments his father had undergone to cure his DNA of the Eradicator's defect - and the Cleric has a vision of Superman in combat with Mongul.

[16] The Cleric notices that the device has changed to protect Krypton's sole survivor, and he and Superman use it to heal their wounds, both physical and spiritual.

[17][18] As they talk about their pasts, the Cleric assures Superman that his departure has only deprived his world of a great hero rather than sparing it from the threat he perceived he had become, confident that Kal-El would only have killed when he had no other choice to preserve justice.

As a result of this new form, the Eradicator came to believe itself to be Superman on some level, showing access to some of his memories- although it lacked his vision powers and instead fired energy blasts from its hands- but it also adopted a more ruthless approach, such as killing a would-be rapist and breaking a safecracker's hands.

It then decided that this dog shouldn't exist and tried to destroy it and Superman held him in suspended animation in his new Fortress, eventually telling him Krypto's full origin once he had learned it himself.

They were directed to draw out the lawbreakers' life force and transfer them to a Phantom Zone projector, with the bodies being put into cryo-chambers to await trial.

[25] In its original technological form, the Eradicator could teleport Superman from Warworld to Earth;[26] manipulate molecular structures to create the Fortress of Solitude,[27] synthetic Kryptonite, manipulate genetics to a great degree; keeping the Cleric alive for millennia;[18] augmenting or bestowing special powers onto others like the virus which gave Jimmy Olsen temporary stretching powers.

[28][29] Holding sway over time/space Eradicator could retrieve Kryptonian technology from the past (implied to be through the Phantom Zone);[27] manipulate vast quantities of energy to reshape entire planets/star systems or alternate weather patterns,[30] and even having psychic abilities capable of influencing the minds of Superman and Matrix.

The full extent of his programming alteration is unclear, although it has been shown that he can sense beings and gateways from alternate realities such as the Bleed, a Limbo dimension.

[34][35] Being a sentient device he/it can also store and manifest any kryptonian machinery from its person at will which greatly magnifies the droid units melee.

[36] Eradicator is made up of living energy, as such he is also capable of controlling physical density at will,[37] able to become immaterial for a time to bypass attacks or even possess people's bodies if need be.