This article became obsolete as of Patch 2.4. For +Healing and MP5 comparisons relevant as of 2.4, please see 2.4 Mana Regen – Part 3: Valuing +Healing.
As a Restoration Druid, there are several stats that must be considered when determining whether a given item is an upgrade: Intellect, Spirit, MP5, and +Healing. Each of these should be weighed relative to one of the others to get a good idea of how a given item “breaks down.” MP5 is my favorite indexing stat since the other stats have values greater than 1 when making a comparison. Today I’d like to examine how much +Healing equates to MP5. But unlike the calculation for Spirit vs. MP5 (in which it is relatively simple to account for time spent within the 5SR), the value of +Healing is a much more complex calculation that must take into account the following variables:
- The percent of total healing comprised by each of our various Healing spells
- The total health restored and mana cost for each of the above spells
- The scaling of each of the above spells for each point of +Healing (article here)
From the above data, we can calculate the HPM for each spell (health restored per point of mana) and then weight this HPM by the percentage of total healing provided by each spell. Obviously, the way in which we heal (and thus the percent of our total healing that comes from each spell) is subject to the dynamics of a particular encounter. I will be using data from last night’s Gruul kill to demonstrate how this can be calculated. I am using the excellent UI addon, Recount, to breakdown my healing by spell:
(Phaelia vs. Gruul the Dragonkiller)
As you can see above, Lifebloom was the source for 71% of my total healing. Unfortunately, Recount doesn’t track the difference between a triple stack of Lifebloom and a single application. This is important, however, as the strength of 3x Lifebloom is its high HPM efficiency. To determine that, I used additional data from our guild’s cumulative raid stats that indicates that 47% of my total healing was to our main tank (the most likely target for 3x Lifebloom):
% Total Healing 3 x LB = 0.71 * 0.47 = 33.37%
% Total Healing 1 x LB = 0.71 * 0.53 = 37.63%
Note: I recognize that this estimate does not account for the other forms of healing I applied to the tank, but this is an unfortunate limitation of the data I was able to mine.
Using these values and assuming an average of 1500 +Healing, I was able to generate the following chart (download the spreadsheet):
From the values above, I can conclude/calculate the following:
- On average, 1 point of mana converts to 11.74 points of health.
- Over the course of an 8 minute fight (estimated time for Gruul), 1 MP5 provides 96 mana or 1127 health (8 * 12 = 96; 96 * 11.74 = 1127).
- 1 MP5 converts a 0.46% boost to Healing (1127/244826 = 1127 / total healing).
- 1 point of +Healing represents a 0.0418% boost to healing.
- If 1 point of +Healing is valued at 0.0418% boost to healing and 1 MP5 is valued at a 0.46% boost to healing, then 1 point of MP5 is equivalent to 11.00 +Healing (0.0046/0.000418).
I recognize that I had to make a lot of assumptions to find this value and that there are a lot of variables that might change based on the encounter. I’ve provided the spreadsheet for download below, so feel free to adjust the figures for your own collected values. Note that there may be reason to further increase the relative value of MP5; after all, if at the end of the fight the tank dies because you are out of mana, having healed for a bit extra at the start will be of little comfort.
Note: This calculation ended up feeling less “solid” than calculations I’ve been able to perform previously, mostly because I lacked good data for the number of stacks of Lifebloom that were applied. Nonetheless, after plugging in different values for the “soft” figures that I’ve estimated (% of 3x Lifebloom vs. single Lifebloom), the numbers do not seem to change significantly.
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