Marcus Daniels (Earth-199999)

Marcus Daniels, also known as Blackout, is a mutate who worked as an assistant at a physics laboratory studying the energy known as Darkforce. Daniels was exposed to the energy, giving him the ability to suck the energy out of anything around him, even people. Around the same time, Daniels became obsessed with the Portland-based cellist Audrey Nathan, who he called his "only light in the darkness". His obsession soon turned to stalking, and he was eventually apprehended by a team of S.H.I.E.L.D. agents led by Phil Coulson.

Powers
Darkforce Manipulation: Blackout is able to manipulate Darkforce in a variety of ways, especially projecting bolts of Darkforce that appear as twisting black smoke and stun whomever they contact.

Energy Absorption: Blackout is able to suck the energy out of anything around him, making the light bulbs blink when he passes and rendering most conventional weapons useless against him. He can kill with a touch by absorbing the electrical impusles of a human. He has a limit on how much energy he can absorb at one time. This weakness was used by Coulson to defeat him on one occasion, but Blackout claims that S.H.I.E.L.D. increased his powers, causing Coulson to use more drastic measures to defeat him.

Abilities
Physics: Blackout was a laboratory assistant of Abner Croit, assisting him in his search for uses for the Darkforce.