Gods and Demons of Death

These Authorities themselves are stated to vary, but its been stated that all of the Authorities possessed by the Gods and Demons of Death are nothing more than sub-abilities and skills to the power possessed by the "Black King".

Black King: Is the Conceptual Being representing Death, Nothingness, Void, Dreams and Emptiness before creation. As the literal embodiment of Death, the Black King is the root and origin of all the powers and abilities of the Gods & Demons of Death. As such, "he" is worshipped and revered by them all. As showcased where all, the Gods & Demons of Death in the 98th Floor of the Obelisk rallied behind and supported Cha Yeon-woo when it became apparent that he was a candidate to be the Black King's Apostle and gave him their unwavering support. Later, when he became an Ego of the Black King, the Gods and Demons of Death became loyal to him and when he ordered it, began attacking and causing chaos in their own societies when he declared war on them all.