Any physical pain inflicted by an enraged Hounrem only subsides when the Hounrem calms down. It has been written that the pure agony caused by its attacks completely overrides one's sense of clarity and judgement.
It generates a powerful, freezing energy inside itself, but its body became frozen when the energy leaked out. In a Hounrem pack, the one with its horns raked sharply back serves a leadership role.
