Delgado was a S.H.I.E.L.D. major and latent mutant. Leading a team of agents, he chased Acolytes who were using a stolen shuttle to reach the Asteroid M, seeking refuge to Magneto. He managed to infiltrate the base, but was captured but was turned side by Anne Marie Cortez's abilities, and his powers activated by others, and joined the Acolytes.
He later died in the crash landing of Asteroid M, after it sabotage by Fabian Cortez.
Delgado was resurrected via the Transmode Virus during the Necrosha crisis and, searching for Magneto with his fellow acolytes Cortez and Mellencamp, battled Deadpool and Loa. They were eventually, and contrary to the others "zombies" who weren't possible to kill, killed by Loa's powers (Loa was used as a projectile by Deadpool).