I posted this in the "simple question" thread, and didn't really get a good answer, so here goes with a not-so-simple question:
Are clerics / other divine casters considered to "know" all their spells, even the ones they can't cast? Specifically, I'm looking to dip a level of Cleric, then use Uncanny Forethought from Exemplars of Evil to spontaneously cast a cleric spell "known" using an arcane spell slot.
There seems to be some precedent in the form of our lovely miracle-spewing level 6 Cleric via Heighten & Sanctum spell. If it doesn't work normally, could that combination allow me to pull it off? I'm working on a nice little build to share with the boards, but I'd like to get this point clarified before I go ahead and get an illegal build shot down in flames.
Thanks!