At first, he's a very chill entity but when it comes to humans, he'll lash out. He may look like a skeleton, but don't let looks fool you he's just a black smoke entity that fumes in hatred. Embodiment of hatred and negativity, also, he uses others for his own personal needs so no need to try your hardest to achieve his good side. His weakness, like Nightmare, his weakness are positive emotions so when he spots them, he's easy to snap.