Formulas:Downranking
From WoWWiki
Downranking is the process of using a lower than maximum spell rank in order to gain higher efficiency per mana. It is particularly used by healing classes - Shamans, Druids, Paladins, and Priests - in order to extend their longevity in long boss fights.
General Downranking Penalty
A penalty for downranking to spells below level 20 has been present since early in the game's development. Shortly before the release of the 2.0 content patch, an additional downranking modifier was added in order to combat significant downranking of healing spells in raiding. With the original system, as long as the spell was over level 20, there was no penalty. This lead to situations where certain classes were using spells down to into the lower 20s and compensating for the lower base healing amount by stacking +heal stats, resulting in an extreme increases in healing per mana beyond what Blizzard's encounter design had intended.
The new formula scales down bonus healing and damage for spells which could have been learned more than 11 levels ago, by a simple multiplier:
Calculation:
sLvl = Level that the rank of this spell can first be learned
cLvl = Caster's Current Level
Downranking Multiplier = Min(1, (sLvL + 11) / cLvl)
| Example: Flash Heal 4 Flash Heal 4 is a level 26 Priest spell. For a level 70 player, the multiplier for Flash Heal 4 is therefore Min(1, (26 + 11) / 70) = 0.529. This is in addition to the multiplier reduction due to Flash Heal's cast time - the final multiplier, including this, is 0.227 |
Level 20 Penalty
The original form of downranking penalty was the Level 20 penalty, applied to all spells level 20 and below based on the level the spell was learned. This applies from the moment the spell is acquired, but it usually does not matter to the lower level characters as +heal/+damage gear is rarely available until later in a character's progression.
Calculation:
sLvl = Level that the spell is acquired at
Level 20 Penalty Multiplier = 1 - ((20 - sLvl) * 0.0375)
| Example: Healing Wave 2 Healing Wave 2 is a level 6 Shaman spell. The level 20 penalty multiplier is therefore 1 - ((20 - 6) * 0.0375) = 0.475. This is in addition to the downranking penalty and the reduction due to Healing Wave's cast time - the final multiplier, including both of these factors, is 0.066 |
