Evil Spirits (OotS, ALv)

Spirits tha lurk in the land of living and that are the souls of the ones that carried evil in their hearts, or simply spirits made out of evil itself.
==Description==
Those spirits normally identify themselves by a dark smoke, with or without red light. They can, in their natural form, move at the speed of light.
==Abilities==
Like said before, spirits on their natural form can move at the speed of light. Some, if not al of them, have the ability of possessing another beings and controlling their actions. There is some discussion open that they actualy have limitless control over their subjects, as seeing when Chomper refused to kill his friends when he was about to, and some individuals, like Chomper, may note perceive that they are under possession, since Chomper believed that he had done all those things because he wanted to.
When they are in a good number, or are considerably powerful, they can do great tricks of magic, like changin a life form, or creating chaos.
In cases where someone is a reincarnation of a evil spirit, this individual may be influented by this spirit or possessed by it, as was seen when Rex was possessed by his past life, the flamebreath.
==Examples==
*Spirits of the cave
*Dark Rex
*Fire