Nightmare is a growing, though temperamental Lamia. His scales are a deep black with his underbelly being a slightly lighter shade; Almost a gray. He is manipulative, crude, rude and moody, but affectionate, perverted and flirtatious when he wants to be. He has one visible eye, the other being covered by negativity/goop. He has sharp fangs and claws, venomous, and has four, chubby/goopy tentacles protruding from his back.