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Normally, Resilience is considered a PvP stat and not something you'd want on PvE gear. However, if you're sporting gear like a PvP mace for the spell damage, or the PvP shoulders as a placeholder until you get High King Maulgar to cough up the T4 shoulder token, that resilience actually reduces your crit chance, and you no longer need 490 defense to be raid uncrittable. The question now is: How much defense DO you need?
Normally, you need 490 to be uncrittable against raid bosses. However, googling WowWiki on Resilience, we see that one percent of Resilience has the following effects:
- Chance to be critically hit reduced by 1%.
- Damage taken from crits that do land have their critical strike damage component reduced by 2%
- Damage taken from DoTs reduced by 1%.
- Amount of mana drained or burned by mana draining effects is reduced by 2%. (added in Patch 2.4)
Now, I'm not a math wizard, so if you want to know all the dirty details, check out the WowWiki page since they cover it very well. However, for the purposes of melee critical strikes from a PvE raid boss, we are mostly interested in the first resilence effect: Chance to be critically hit reduced by 1%.
Switching gears for a moment, 2.4 defense rating (on your gear) = 1 defense skill (in your paper doll character screen). It takes 25 defense skill to reduce your chance to be critically hit by 1%.
So, at level 70:
- 39.4 Resilience Rating = 1% Resilience = 1% less chance of being critically hit.
- 60 Defense Rating = 25 Defense Skill = 1% less chance of being critically hit.
So what does this all mean? Well it means that on your gear, you can substitute 39.4 resilience rating for 60 defense rating. So if you're sporting some resilience from your PvP mace or shoulders, you can drop some defense. So back to our original question... HOW MUCH?
Well, here's an Excel spreadsheet that you can use to figure it out. Just plug in your resilience and defense, and it will tell you how much more resilience or defense you still need to reach uncrittable. My thanks to Cowofdoom over on Tankspot for creating the original google spreadsheet that mine is based on.
Just a warning to people out there who think that you can tank in PvP gear. Resilience is best used sparingly. While it provides a faster path to reaching uncrittable than defense rating, you miss out on the other benefits of defense rating, namely dodge/parry/block/miss. Remember that you need dodge% + parry% + block% + miss% = 102.4% to be uncrushable.
Discuss: http://www.tankadin.com/forum/gear/416-resilience-vs-defense-and-the-uncrittable-tank/
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