|Giotto – The Miracle of the Spring|
Here is an idea for another way to do cleric magic, based on a d6 roll and my idea of competency (which is character level divided by 2, round up).
All cleric magic is ritualistic, and requires a turn (10 minutes) to attempt. This time represents the cleric petitioning for aid, reciting prayers or sutras, and so forth. Roll 1d6, add competency, subtract disfavor (see below), ritual succeeds on a 6. If the magic works, the cleric gains a point of disfavor. Disfavor is reset to zero when the cleric returns to civilization (generally, between sessions). Rituals available would be the standard spell list and max level of spell known would be equal to competency, just like for magic-users. Or maybe competency minus one to make it so that clerics don’t get any spells at first level.
Banishing demons or turning undead might also decrease effective competency, though I’m not sure if turning undead should require a roll or not.