Alright, so i have 2 clerics in the works right now, And I've not touched religion in pathfinder at all. One of them I want set up to cause disruption in combat and drive opponents to madness or fear. The other I want as somewhat of a protection/healer, but can still hold his/her own in combat physically. They are in no way related, I just need 2 separate clerics. As always, I am limiting myself to the Core rule book, ultimate magic, ultimate combat and APG.
Thanks!
So what's the question? Choose appropriate domains and dieties that match those domains and make sure they're not of wildly conflicting alignments.
You could always do a Pharasma (healer) and Groetus (madness) combo. Groetus is a minor deity, which you can find outlined in Faiths of Balance or the Inner Sea World Guide. Yes, I am fully aware that you didn't want to use anything outside the big 4. These two are simply well-aligned conceptually.
Madness is primarily a domain of Lamashtu if you are not looking at Faiths of Balance. Madness creeps into A LOT of the Neutral minor deities (several of the First World pantheon and Groetus come to mind immediately).
If you're dead-set on the big 4, you're probably looking at Lamashtu + other in your concept. If you're willing to drop the healing/protection bit, you could always have the 2nd be a Gorumite to pick up some extra melee beatings.
Alright, After reading into it a bit I think I have a general idea for what I want to do now, thanks.