Nightmare is a skeleton lamia, his lower half body is a snake body while his upper half body is is normal skeleton body. He has purple eyes and purple colored scales on his tail, he is usually cautious around people and creatures that approaches him so he will try hissing at them or attack them to draw or lure them away. He is shy, calm yet feisty skeleton lamia. He is about 7'5 taller than an average human height