With 4.2 Improved Water Shield is gone. Instead we get Resurgence:
While Water Shield is active, you recover mana when your direct healing spells have a critical effect. You regain 2293 mana from a Healing Wave or Greater Healing Wave critical, 1376 mana from a Healing Surge, Riptide, or Unleash Life critical, and 764 mana from a Chain Heal critical.
(Spell description from the PTR thanks to Alacranmex from Stand in a Blue Circle)
But, how much mana is that?
I did a bit of math about that, and I found interesting facts :
- 1% Crit will always save you the same amount of mana for each spell, no matter how much crit you already have.
- The mana saved by crit will change drastically depending on your spell usage. 1% crit will save you about 1.37% mana on Healing Wave, and only 0.17% mana on Healing Surge.
- Casting Healing Surge with Tidal Waves up reduces the average cost of the spell by 300 mana, or approximately 5%.
So I made a chart of the average mana saved per spell cast for 1% crit, and I added the mp5 value of 1% crit for each spell (at about 1100 haste rating):
| Avg mana saved per cast | Cast time | mp5 equivalent | |
|---|---|---|---|
| Healing Wave | 21,37 | 2,3 s | 46,45 |
| HW with Tidal Waves | 21,37 | 1,6 s | 66,77 |
| Greater Healing Wave | 18,19 | 2,3 s | 39,54 |
| GHW with Tidal Waves | 18,19 | 2,3 s | 56.85 |
| Healing Surge | 9,96 | 1,4 s | 35,59 |
| Riptide | 12,36 | 1,4 s | 44,14 |
| Unleash Elements | 12,78 | 1,4 s | 45,63 |
| Chain Heal (4 hits) | 19,31 | 2,3 s | 41,99 |
| Chain Heal (3 hits) | 14,49 | 2,3 s | 31,49 |
As a comparaison, at 2300 spirit and 6000 intel, 180 spirit will grant you about 120 mp5, 2 to 4 times as much as 1% crit or 180 crit rating. If you want spirit equivalent for your own values of intellect and spirit, you can look at this regen calculator from Zusterke.
So, you won’t reforge spirit to crit yet if you’re looking for mana regen only. As to know if crit will become a better throughput stat than haste or mastery, that’s another story…
Want to know more about Resurgence? Continue with How to get the most out of Resurgence?
2 comments
Alacran
May 18, 2011 at 1:22 pm (UTC 0) Link to this comment
Good work here as always. The table was very helpful.
p.s. The Zusterke link is broken.
Zahia
May 18, 2011 at 1:42 pm (UTC 0) Link to this comment
Thanks !
The link should work now, it was just a silly mistake