Tanarukk

Tanarukks are orcs whose blood has been tainted by an evil outsider, in many cases a tanar'ri demon.

Description
They appear as short, stocky orcs with bristly hair, horns, or ridges along the sides of their heads. Tanarukks also have the distinctive smell of brimstone about them and in fact have a limited ability to manipulate fire.

History
The tanarukks originated as orc-demon crossbreeds in the region around Hellgate Keep. However, years of dwelling on Faerûn has led to their being regarded as a separate species, rather than simply as a subrace.

Psychology
They're nasty, brutish and not terribly intelligent (despite being smarter than an average orc); they are, however, extremely dangerous fighters. In spite of their lack of personal magnetism, the tanarukks' instinctive ability to control flame has led many to become sorcerers. More still can be found acting as muscle for cambions and other fiendish creatures.