Evistros, also known as carnage demons, are demons formed from the souls of wrathful brutes such as orcs, ogres, or human thugs. They may also sometimes evolve from dretches that overcome their natural slothfulness and give themselves over to blind rage. Evistros roam the Abyss in unruly mobs, spreading murder and destruction in their wake. They are commonly rounded up by more powerful fiends into demonic hordes and sent into battle behind a first wave of dretches, who are spurred forward in fear of the carnage demons’ wrath.
Due to evistros’ reaving fists and tendency to attack even their allies in the heat of battle, they are especially loathed by other demons.
Seshket is patron of all vices, including wrath, and so he sends the carnage demons to aid some of his faithful. Even so, their unpredictable nature makes them summoned only as a last resort.