mocking, sarcastic, angry, domineering, hateful. he loves it when others suffer and are afraid. while you sleep, he will watch over you and direct the most terrible horrors and nightmares, and it's better not to wake up if you don't want to be afraid anymore. basically in the form of a ghost that appears at night (in the dark), and cannot harm you physically, only mentally. The Nightmer can also be in a physical body, which means he can interact with objects in your room and also with you..