Yeenoghu

In the Dungeons & Dragons tabletop role-playing game, Yeenoghu is a Demon Prince, the Demon Lord of Gnolls, and the bestial embodiment of savage butchery. His personal weapon is his dreaded triple flail, created from the bones and skin of a slain god. Yeenoghu commands the obedience of ghouls and ghasts (mainly through his subjugation of the entity known as the King of Ghouls). His worshippers sometimes paint his eye on their weapons and armor so that their patron can see the atrocities they commit in his name.