This unnamed acheri was used by Ava Wilson with her supernatural powers.
Overview[]
At a unknown point, Ava Wilson managed to control her powers and controlled this acheri to kill the other special children.
Later, Ava uses it to hang Lily Baker who was trying to escape through the forest. She then reveals herself to Jake Talley in the form of a little girl before disappearing after being struck with an iron blade by Sam Winchester. She reappears one last time after Ava calls her out for disemboweling Andrew Gallagher. Ava tries to call her with her powers again but is killed shortly after by Jake. The acheri did not reappear after that.