The concept art presented here was created by Jeff of Jeffchendesigns. Black Cloaks are an arrogant, loyal, and vile breed of inter-dimensional beings. Spawned by the unchecked power of the void and tainted by evil.
These entities closely resemble a cloak or mantle of royal quality comprised of shadows so thick they appear solid. Their goal is to possess and control mortal vessels, then use said vessel to carry out their masters' whims.
Once possessed a victim unwillingly cedes control of their body and soul to the black cloak. The black cloak subsumes their victims' memories and training. This process also forces the consciousness of the victim to watch on as their life is taken over by this oppressive existence. The horror of this experience grants the black cloak a steady source of tainted soul-energy to infuse it's dark abilities with even greater power.