Holy relics, used mostly by nuns, are known to have many separate forces bind to them. Years of studying revealed three main streams of power that were upheld by certain groups of saints. These forces were used to banish undeads, dispel evil fiends and cast protective auras. When powerful nun was slain she was transformed into a powerful saint in realm unknown to mortal men. When successfully cast, the caster feels all the different streams of holy magic, their strenght and saints controlling the flow. The magic saint controls is always same, you may study the saints in the library in convent of White Rose.