Originally Posted by
HolyLathusDisc
Rules of Priest Healing:
Know your boss cooldowns so you can time your AOE heals/shields
Know when your spells are coming off cooldown and when the best time to cast them is.
Always POM on cooldown, always CoH when more then 4 targets have taken 10% damage.
Stack mastery and spirit. In previous expansions intellect was a good route, but with the exponential amounts of intellect in the game now and it only affecting your output. SPirit is king in terms of enchanting and gemming.
Regen = more output possibilities