RM1, pg 28 has a Closed Channeling list called Ceremonies. As GM I added this list to the Paladin, Cleric, and Cultist base lists.
Level 1 spell is "Prayer" which says, "Gives caster peace of mind, clarity of purpose, and Communion with Deity.
I require the use of this spell for power point recovery and because of the devotion to religion.
In the past I've had two players, both as paladins, roll to cast prayer and get open ended rolls. In most cases I, and I'm sure most GMs, would not care because it doesn't affect the spell effect. However, I had the idea that the roll is required for the spell to succeed or not, but I have them add the Intuition bonus to influence the actual prayer.
For example, a daily prayer of devotion alone would not grant the player anything other than it's deity's approval or "favor", but if the player is seeking guidance (looking for a sign) or asking for help in some way.
I also use the player level. A level 1 cleric would not show up on god's radar the way a level 15 cleric will.
I'm thinking of using a sliding scale, which I have to somehow invent, something like The Old Republic MMO did with dark side and light side force points. Their scale was basically 1-3 points assigned to the decisions you were offered. This would be much harder in this type of "free will" system that doesn't use Alignment.
Has anyone else tried this? Any ideas or criticisms welcome. I'm open to input.