Rites are supernatural effects, typically accomplished by spending vitae points. Rites are not spells, do not require spellcasting ability, nor does the ability to use rites count as spellcasting for the purposes of prerequisites. Rites are not learned, they are simply available to any creature who meets the prerequisites. In addition to the listed prerequisites, all cruor rites require the user to worship Hadeus, and to possess a vitae pool.