Any holy spec that is worth anything will have serendipity... meaning that Overhealing will refund 25% of the gheal cost. You are quite correct that gheal will generally overheal for a portion, a good holy priest will ensure about 10% of the heal is overhealing as to keep the tank/target within safe health levels while making a large portion of their heal effective... and the slight overhealing makes that heal even more effecient. 750 odd mana for an 8K heal makes it by far the best HPM spell available to a holy priest.Originally Posted by Danner