Sources: Player's Handbook
The god of slaughter, Erythnul, is chaotic evil. His title is the Many. Erythnul delights in panic and slaughter. In civilized lands, his followers (including evil fighters, barbarians, and rogues) form small, criminal cults. In savage lands, evil barbarians, gnolls, bugbears, ogres, and trolls commonly worship him. The domains he is associated with are Chaos, Evil, Trickery, and War. His favored weapon is a morningstar with a blunt stone head.