Unholy Riven

Medium-size Monstrous Humanoid

Source(s):	Book of Eldritch Might 2
Alignment:	Always Neutral Evil
Climate/Terrain:	Any land or underground
Challenge Rating:	13
Once good aligned spellcasters that committed a particularly atrocious act, usually in the form of a spell. The sudden flux of evil energy transformed them into an ebony skinned creature covered in arcane symbols and runes. They feed on arcane power.