From publisher blurb: Obcasus Rites are a useful, if not always wholly reliable source of power for the Begotten, calling upon the Dark Mother and their own nature to enact change upon the world. Still, Obcasus Initiates are almost always found in at least small numbers within a Hive. Mother’s Magic is a Beast: the Primordial supplement which includes 12 new Obcasus Rites for use by these Initiates.