Slayback appeared in 1993 Marvel Comics called Deadpool.
At some point in the past, Gregory Terraerton was seemingly killed by "the merc with the mouth" Deadpool.
Years later, he somehow came back to life as Slayback and used stolen Weapon X files on Kane and Deadpool to kidnap Copycat in order to use her as bait to find and kill Deadpool for killing him earlier.
He was subsequently seemingly killed by Zero (an A.D.A.M. unit).
Slayback once hired himself out to a scientist group who wanted to use Deadpool's healing factor as a possible cure for the Legacy Virus. He enjoyed carving on his old friend Wade's chest during the experiments.
He was later revealed to be alive, but he was killed by Sharp after test subjects from the Weapon X program escaped, and went to Hell.
He mysteriously came back to life to fight Deadpool and his Mercs for Money.
Powers and Abilities[]
- Cyber-Morph: Slayback has expandable and extendable bionic arms and sharp talons that he can reshape into a single point.
- Superhuman Speed
- Superhuman Strength: His bionics afford him enhanced strength.
- Regenerative Healing Factor: His healing factor can reconstitute his entire body.
- Hand-to-Hand Combat: He is an expert hand-to-hand combatant.