Pack warriors make up the bulk of a gnoll tribe's fighting force, and while individually they are vicious and lethal, when attacking en masse they are a relentless horde.
In combat they are fearless, favoring numbers and ferocity as their primary (if somewhat rudimentary) tactic. A good war chieftain can go a long way in organizing this pack mob mentality into victory on the battlefield.
Lazy, humanoid hyenas of low intelligence that live by intimidation and theft. Legends say that gnolls were magically created by a wizard who crossbred gnomes and trolls.