SACK

 

SACK

Real Name: Unknown

First Appearance: The Uncanny X-Men (Vol. 1) #323, August 1995

Powers: Sack is primarily composed of loose protoplasm wrapped around a pliant bone structure. He is impervious to many forms of harm, as he has no conventional sense of pain, bullets or other projectiles can pass into or through his body without damaging anything, and the holes regenerate in seconds.

His mutant power is the ability to assume control of another person by oozing over their body. Relaxing his humanoid shape, Sack becomes a living gel that seeps into his victim's pores and forms a loose film over their skin. This process dampens neurological and psychic activity as it begins, making it harder for the victim to think or fight back against him. Once he fully locks into his host body, Sack is able to completely direct their actions and movements. His host bodies tend to be dead after he discards them, suggesting his gel is either air-tight (preventing them from properly breathing while infused with him) or causes some form of neurological impairment that kills them as a by-product of the process.