Free: Does not place Priests into the 5 wow gold second rule. Does not trigger in combat Mana Regen. Instant: Possible to wait until the last possible moment to cast it. Perfect for sniping them pesky Resto Shamans, right?

The side effect of this is that as one spell's use rises, the other falls. During the Burning Crusade, Greater Heal was the single target heal of choice. But with the various changes and bonuses to Flash Heal, Priests will opt to use more of that.

Having points invested in Improved Holy Concentration hastens a Greater Heal or a Flash Heal cast. This drops Greater Heal down to about a 2.1 cast and Flash Heal to ~1.0 second cast.

The Flash Heal glyph gives even more incentive for Priests to use Flash Heal. It knocks wow gold off 10% of the mana cost rendering the heal per second and heal per mana cost almost the same as Greater Heal. So if you're trying to manage your mana, it allows you to control it that much better!

Unfortunately, there is no Greater Heal glyph. If there is, it might result in more uses. What effects would a Greater Heal glyph do?

A minor stacking spellpower increase to healing spells Chance to increase wow gold haste on next spell Increased critical strike chance I'm not the most imaginative. But it is a start.