From WoWWiki
- Sometimes, a small shard of light is all that is needed to keep the darkness at bay.
Flash Heal is a priest's fast single-target healing spell. In theory it sacrifices mana efficiency in order to land a heal faster on someone who might not live to receive a large heal, but in the contemporary raiding environment, flash heal has become the direct heal of choice for many priests, and can be more mana efficient than it's slower alternative, Greater Heal
While Greater Heal is more efficient than Flash Heal when looking at the base spell, without talents they scale the same way in terms of healing per second. Because Flash Heal has a glyph that improves it's mana efficiency, while there is no glyph for Greater Heal the difference between the two spells has become smaller. For discipline priests with Improved Flash Heal Flash Heal can actually be more mana efficient than Greater Heal. This, combined with the fact that Greater Heal, being larger and slower, tends to overheal for more, has caused some priests to abandon Greater Heal altogether in favour of the faster heal.
Debate continues whether it is correct to replace Greater Heal with Flash Heal entirely, but Flash Heal definitely has a place as a direct heal for all priests.
Rank Table
| Rank | Base Mana Cost | Value | Level | Cost
|
| 1 | 20% | 193 - 237 | 20 | 27
|
| 2 | 20% | 258 - 314 | 26 | 54
|
| 3 | 20% | 327 - 393 | 32 | 99
|
| 4 | 20% | 400 - 478 | 38 | 1 44
|
| 5 | 20% | 518 - 616 | 44 | 2 16
|
| 6 | 20% | 644 - 764 | 50 | 2 70
|
| 7 | 20% | 812 - 958 | 56 | 3 78
|
8 | 20% | 913 - 1059 | 61 | 4 77
|
9 | 18% | 1101 - 1279 | 67 | 8 91
|
10 | 18% | 1578 - 1832 | 73 | 18
|
11 | 18% | 1887 - 2193 | 79 | 18
|
Notes
Improvements
Talents and spells
- Blessed Resilience increase the amount healed.
- Empowered Healing increases the benefot Flash Heal receives from spell power.
- Focused Power increases the amount healed.
- Grace causes Flash Heal to stack the Grace buff which increases your healing on the target.
- Holy Concentration causes your Flash Heal criticals to increase your spirit-based mana regeneration by 50% for 8 seconds.
- Improved Flash Heal reduces the cost of Flash Heal and increases its chance to critical against targets under 50% of their maximum health.
- Renewed Hope increases the chance that Flash Heal will critial on targets with the Weakened Soul debuff.
- Spiritual Healing increases the amount healed.
- Surge of Light provides a chance, upon landing a spell critical, of having your next Flash Heal be free and instant cast, but unable to critical.
Glyphs