Originally posted by: torpid
The priest has only the fear type spell and power word: shield. And shackle unead, if you want to count that (which is pretty useful in darkshire, BTW).
I almost never use fear. And PW:S is basically only used when I'm running away. Sometimes mana is a problem, but my combat style is to only cast in the first burst, then refresh my renews and SW

, using melee and wand in between. I usually finish a 1 on 1 PvE battle with 85+% mana and life.
As a holy priest I rely heavily on my wand and a quick 1H weapon (preferrably dagger with equal weapon speed to whatever wand I'm using, but daggers tend to be expensive, generally a 2.0 or less speed mace is more reasonable). If you're using a staff to solo with a priest you're gimping yourself. wand then melee during the cooldown will get you far more dps, and during that time your mana can regenerate while renew is keeping your health up and SW

is also doing significant damage. For the wand use, try firing the INSTANT you start your melee animation. You won't see the melee number scroll over the head of the mob, but it will have done its damage. Once you get the timing down wand + melee gives quite a bit more damage than either one does alone.
Generally the only direct damage spell I cast in solo PvE is Mind blast, and that's only on the initial pull. If they're a runner, depending on the severity I may cast it just before they break away and start running (most mobs ditch at 15% which is generally low enough that MB will kill them)
Any time I would use PW:S, flash heal is a better choice. It's far more mana efficient for the damage mitigated and With 2 points in Imp Flash heal I don't have a problem getting them off because of mobs hitting me. Getting to level 10 is somewhat a chore, but once you start getting points to put into renew, and then spiritual healing things get a LOT easier. Then once you get past subtlety and get to Imp. Flash Heal you begin to approach paladin levels of not dying without being quite so boring to play (I only got my paladin before 13 before I realized how boring it was going to be and giving up)
I can see a shadow priest having significantly more mana problems at lower level, but I imagine once you start getting into the bottom of the shadow tree you'll get significantly more efficient. With the higher level shadow talents, you up the efficiency of one of your damage dealing skills dramatically. I can also see why you might be so dependent on PW:S. That would suck too, PW:S is such a mana-hog.