@Seebus hey dude, I play as a smite priest and was wondering if you play it also?

Sorry for my late reply! I prefer healing over smiting though ;)

@Seebus Do you have a list of spells that are must have and what spells to skip while leveling?

Again great guide!

Priorities:

Smite: Before you get talents that increase your shadow damage, Smite is worth ranking up and can be used to get the last hit on enemies to activate Spirit Tap. You can train Smite at the following levels: 6, 14, 22, 30, 38, 46, and 54.

Mind Blast: Mind Blast is the ideal spell to use when trying to activate Spirit Tap by getting a killing blow on an enemy. Once you have the deep Shadow talents that increase damage, you'll want to use Mind Blast to finish off enemy mobs. You can train Mind Blast at the following levels: 10, 16, 22, 28, 34, 40, 46, 52, and 58.

Power Word: Fortitude: Priest's signature buff, having this for yourself and potential party members is always going to be worthwhile. You can train this spell at the following levels: 12, 24, 36, 48, and 60.

Inner Fire: A self-buff that provides you with a significant armor gain. Considering that you are cloth, this can be very useful if you are anticipating taking a lot of melee damage. You can train this spell at the following levels: 12, 20, 30, 40, 50, 60.

Power Word: Shield: Another noteworthy spell while leveling, an instant absorb shield is fantastic for emergency healing situations and PVP. You can train this spell at the following levels: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60.

Shadow Word: Pain: SWP is going to be the companion spell to your wand's Shoot, it is one of your more mana-efficient spells for leveling. You can train this spell at the following levels: 4, 10, 18, 26, 34, 42, 50, 58.