Mother Shahraz is a shivarra boss located in Black Temple in Shadowmoon Valley. Besides requiring high amounts of Shadow Resistance, the fight is rather basic tank and spank. All previous bosses (Shade of Akama, Teron Gorefiend, Reliquary of Souls, and Gurtogg Bloodboil) need to be killed before the door to Mother Shahraz opens. She must be killed before the raid can gain access to the Illidari Council. Given her location, quotes and abilities, it can be surmised that she is the leader of the concubines in Black Temple.