The Ebon Geist is a type of of warp entity.
Ebon Geists or Warp Predators are nearly-mindless creatures that hunger for the life of mortals. An Ebon Geist is blacker than emptiness itself. It writhing like a shadow, supple and elusive but its talons sharp and deadly. The attacking Ebon Geist leaves behind only an empty husks and the screaming shadows of its victims.