Demons

From Id Atlas

"They have no pity, no mercy, take no quarter, and crave none. They're the perfect enemy, in a way."

The specimens appear to be carbon based lifeforms, with extremely high heat tolerances. The epidermal tissue is extremely resilient to abrasion or incision, which has complicated internal studies. Observational studies have shown incredible strength and agility, as well as the ability for some specimens to manifest and control cohesive plasma masses. The method by which these plasma masses are created is yet unknown.

It is believed these creatures possess a rudimentary intelligence and social structure.

For a listing of known demons, see Category:Demons.