The Nomad (taxonomy unknown) is a form of mental parasite. An astral being that "possesses" victims, forcing them into homocidal rage. Once the victim kills, the nomad feeds off the dying creature's Essence. It appears on the physical plane only when attacking, manifesting as an amorphous patch of darkness about half a meter across. When assensed on the astral plane, the nomad appears as an amoeboid creature of impenetrable blackness, roughly 1.5 meter across.