Nightmare is a short, kind, empathetic skeleton, he's the guardian of negativity and the tree of feelings along with his brother in the Dreamtale AU. He is white boned. Nightmare wears a long sleeved dark dewberry colored jacket, that's closed with a gold belt with the initials 'NM' on the middle, and black pants with dark purple boots. Nightmare also wears a gold headpiece that has a crescent moon symbol on the top of his skull. Nightmare has lavender glowing eyelights and black eye sockets.