Deathdrinker

Deathdrinkers were powerful, non-tanar'ri demons spawned from vile pits of blood and gore. They were creatures of carnage that reveled in slaughter and collected the souls of those unfortunate enough to cross their paths.

Description
Deathdrinkers were around tall and weighed approximately, most of it consisting of muscle. They had broad shoulders and bulging biceps ending in many-fingered hands, dark, pitted plates covering their hooved legs, and flat chests often protected by intricate armor. Their chipped, antler-like horns decorated by hanging corpses and bones.

Personality
The one primary interest that overrode all others for a deathdrinker was themselves. They were an extremely egocentric race, seeing their kind as superior to any other and seeing themselves as their kind's ultimate paragon. They were also utterly self-serving, happily killing their allies to serve their own needs (even if the need was as minor as the urge to see something bleed). Despite this inflated view of themselves, they were not particularly mentally adept, possessing only average intelligence, cunning, and personal magnetism.

Abilities
Deathdrinkers had several unique qualities compared to other members of demonkind. Their lack of darkvision was compensated for by their truesight, and unlike other demons their resistance to damage could only be overcome by attacks that were both good and lawful aligned. Despite their incredible physical strength, they had few spell-like abilities compared to other demons; they were only able to cast air walk, greater teleport, and greater dispel magic at will (the former effects only able to apply to themselves).

The powers of deathdrinkers emphasized their link to death. They could not be harmed by negative energy and exuded an aura of unlife within of themselves that harmed the living while healing the undead and attracting the souls of the deceased. There was also their eponymous "deathdrink" ability, which would heal them relative to the strength of their victim once they killed a being up close, either by their aura or by simply slaying them in melee combat.

Combat
Deathdrinkers enjoyed and sought out combat. If injured in a fight, they were known to kill their own allies to heal themselves.

Society
Deathdrinkers were native to the Abyss. They were exceedingly egocentric, believing their race superior to all other races, and each seeing itself as the pinnacle of the deathdrinker race. Although they technically had no need of food or shelter, they preferred to make gruesome lairs near battlefields.

Deathdrinkers did not get along with their own kind, but did keep weaker demons and undead as servants. They were susceptible to flattery and enjoyed the company of creatures that would praise and admire them, although deathdrinkers would not admit such a weakness.

Deathdrinkers were known to lead raiding parties onto the Fugue Plane in search of souls. Due to the deathdrinkers' aura, such raids normally captured many souls.

Biology
Deathdrinker demons reproduced by shedding some of their own blood and placing it into a specially prepared breeding pit. The foul, mucky essence of the pit would mix with the blood, causing it to clot and grow while lesser demons attended to it by regularly stirring the contents and adding fresh corpses and new blood. After some time, a new deathdrinker would emerge fully formed from the pit.

History
Deathdrinkers belonged to the least populated category of demons — servitors. Although the demons in this group were created by divine beings using raw Abyssal matter as ingredients, they were a key example of a servitor race that ended up outliving their creators.