Wisp

Wisps are classified as ???, but they share no relationship to other monsters, as they are really Spirits of humans and monsters that never left the mortal world for some reason, and became corrupt because of it. They can be found in all Ranks in Wisp Caverns, along wih their leaders, the Wispmothers, but can appear in Tragedy Boneyard in G and X rank.

In Game information
Spirits of Humans and monsters that never left the mortal world for unknown reasons ''and became corrupt because of it. But don't feel sorry for them, as they are very aggressive towards tresspassers in their territory, and will possess organic bodies, dead or alive, and corrupt and twist them into horrifying forms. The strongest is the Wispmother.''

Move set
The Wisps will wander aimlessly if not attacking a hunter or monster, but when they discover a living being, they will use only one move.

Possess
The Wisp will fly quickly around in circles for a bit and then Dash for the nearest body, usually a dead one, and possess it. If it was a human body, this will spawn a Hallow Hunter. But if it is a monster's body, or skeleton, as seen in G and X rank, it will create an undead version of that monster. There is no way to stop this from happening.