Balhiir were energy creatures that fed off of magic — any form of magic, from thrown spells to magic items up to dragon magic. While they could not be harmed with mundane objects, they could be drained or imprisoned with telekinesis. A balhiir could only be destroyed by its releaser. Balhiir inhabited their own plane and could be summoned to the Prime Material Plane. They could be bound into objects or made to "ride" other beings. They resembled a loosely grouped cloud of lights.