Bathin

A strange monster made from an amalgamation of various bones. The bathin is feared by adventurers as it is believed to pick the bones of those who exhibit physical prowess, such as warriors and monks, and steals the knowledge from those who dabble in the arts of magic and summoning. As long as there are bones for the bathin to pick from, it is able to regenerate itself, even when its limbs are crushed, so the only way to defeat it is to destroy its skull that is acting as a receptacle for the knowledge it steals.