Nightmare Sans

Nightmare Sans or Nightmare for short is a good monster available at LV 60.

ATTACKS: TIPS:
 * Dark Void: It creates a black puddle that quickly expends and suck people trapped in it towards the center of the attack (you).
 * Bone Field: Summons blue bones here and there on a very large zone,extremely difficult to avoid and despite the bones being blue,if you don't move you'll die.
 * Teleport: Creates a black puddle where you clicked and one where you stand you'll slowly sink in the one below you and rise from the one at the aimed spot.
 * Try to get on high ground if you can to avoid being pulled by the Dark Void and killed by the Bone Field.