Mortal sorcery
Mortals cannot perform magic on their own, as they lack the requisite Ka-Elements. At most, they may contribute to a nephilim's rituals—or use certain enchanted items, as these possess their own Ka (see Gamemaster's Companion p36-7, Enlightened Magic p65). However, the secret societies have learned how to harness the nephilim in order to perform magic themselves. There are three ways this is done: sacrifices, elixirs, and homunculi (see Nephilim rulebook p191-2, Secret Societies p37-8). Sacrifices allow the mortal sorcerer to cast one sorcery or summoning ritual by bleeding a nephilim to open a connection to the magic fields. The process is a simple additional component to the ritual: the nephilim's blood is fatally spilled upon the material representation of the spell's element (see "Table of Traditional Magical Tools and Affinities", Liber Ka p52). Elixirs allow the mortal sorcerer to store Ka-impregnated blood for later use. This requires creating a sp...