The Mystic: an OSR Class

People play clerics because they enjoy healing other PCs, they enjoy being tied into the setting's metaphysics, and they enjoy having a connection to greater morality. 

This is a class that allows for all of that in just one page, with compatibility with any edition of D&D and almost every OSR game.

It replaces spells with power over Sacred Things, and the vauge suite of offensive powers with Oaths to fate & penalities for others who break them. Healing powers are kept, and extended. Power is derived from sacrifices to the divine.