Darkforce

"Nothing bad ever happens when you work with something called 'Darkforce'."

- Phil Coulson

The Darkforce, also once called Zero Matter, is a form of unstable and powerful cosmic radiation made of pure negative energy.

History
The Darkforce first manifested on Earth in the 1940s, when a mysterious anomaly occurred that fermented into a portal. The portal inhaled an entire military team as well as their supplies and vehicles, leaving only the Darkforce behind. The Darkforce, was coveted by Isodyne Energy, and was given the label "Zero Matter". Actress and genius inventor Whitney Frost coveted the Zero Matter, seeking to use its otherworldly properties to her own ends.

By the 21st century, the Darkforce became the subject of interest to Dr. Abner Croit and his assistant Marcus Daniels. The scientists led an experiment to harness the electrical power of the Darkforce. During a lab accident, the Darkforce granted Daniels the power to absorb any form of energy, thus empowering him. This allowed him to manipulate brain and heart electrical impulses, killing his victims with just one touch.

After Agent Phil Coulson imprisoned Marcus Daniels at the Fridge, S.H.I.E.L.D. scientists performed experiments on him that strengthened his power over the Darkforce.

Upon release from the Fridge, Daniels used Darkforce energy to battle a splinter team Coulson put together to recapture him. Daniels' manipulation of Darkforce energy ultimately was not strong enough to absorb the energy released by the Gamma Power Reserve created by Leo Fitz.