Upcoming Tank Squish

This post was originally made by Celestalon, posting here for extra visibility:

Hey all. I've briefly mentioned this in tweets, but wanted to provide some more concrete info here for you. In an upcoming build, we're making some major changes to tanks.

But don't freak out, tanks, this is for the better. It'd be very easy to see datamining of these changes and think the sky is falling; don't be deceived! If you do the classic "scroll to my class, read datamined changes to my class only", you'll be sad and angry. And I'll be sad that you're sad and angry.

The core issue that we're aiming to solve is with the power level of tanks' defensive abilities. And I don't mean their gameplay. Their gameplay is great, especially Active Mitigation; that's not changing. I mean their total defensive effectiveness. Health, damage reduction (flat, percentage, random avoidance, etc), passive and active, cooldowns, etc.

Tanks have gotten a lot of power creep. A tanking specialized character should be better at tanking than a non-tanking specialized character, obviously. But by how much? 3x? 5x? 10x? It's gotten to be more like 50x or even 100x. Fun fact as a point of comparison: Most of the Mythic raid bosses (first raid tier) we've been testing deal tank damage roughly equivalent to what Heroic Lei Shen (second raid tier) did, after accounting for the squish and level difference. Some even more.

So, what are we doing about it? We're effectively doing a squish to tanks defensive effectiveness, and to dungeon and raid mob damage to tanks. This list is going to sound like a big pile of nerfs, but it's important to understand that it's not. It's happening to *all* tanks, and mob damage is coming down as well, to compensate.

Additionally, before anyone points it out, yes, some of these changes affect the defensive effectiveness of non-tanks. We didn't forget that; this was done consciously, because we think these changes should be made anyway, or we're considering other changes to compensate them if necessary.

Here's a summary of the actual changes (please post this around, and discuss this, not the datamining which will paint a very skewed and incomplete picture):

• Creature damage has been retuned. In particular, the damage of creatures intended to be tanked in dungeons and raids has been drastically reduced to offset the below changes.
• The amount of Armor on Plate, Mail, Shields has been reduced significantly.
• Many tank abilities that increase maximum health have been reduced in effectiveness: Guarded by the Light, Stance of the Sturdy Ox, Bear Form, Empowered Bear Form, Blood Presence, Veteran of the Third War, Shadow of Death (Enhanced Death Coil), Ursa Major. In most cases, the magnitudes of these effects have been reduced.
• Many tank abilities that passively reduce damage taken in some way have been reduced in effectiveness: Unwavering Sentinel, Improved Defensive Stance, Mastery: Critical Block, Defensive Stance, Sanctuary, Guarded by the Light, Stance of the Sturdy Ox, Bear Form, Blood Presence, Primal Fury. In most cases, the magnitudes of these effects have been reduced.
• Many tank abilities that provide Active Mitigation have been reduced in effectiveness: Shield Block, Shield Barrier, Shield of the Righteous, Mastery: Divine Bulwark, Bastion of Glory, Guard, Stance of the Sturdy Ox, Shuffle, Savage Defense, Pulverize, Frenzied Regeneration, Tooth and Claw, Death Strike, Rune Tap. In most cases, the frequencies or magnitudes of these effects have been reduced.
• Many tank abilities that provided long-cooldown temporary defensive buffs have been reduced in effectiveness: Shield Wall, Last Stand, Demoralizing Shout, Divine Protection, Guardian of Ancient Kings (Protection), Fortifying Brew, Barkskin, Bristling Fur, Survival Instincts, Might of Ursoc, Bone Shield, Dancing Rune Weapon, Icebound Fortitude, Vampiric Blood. In most cases, the durations of these effects have been reduced.
• Resolve has been changed to no longer scale with Stamina, only incoming damage over the last 10 sec, and its scaling rate changed.
  
• Resolve % = 100 * MAX(0, 8.5 * (1 - e^(-0.045*DamageMod)) - 1)
• DamageMod refers to the % of a basic equal-level creature attacking you that you've had directed at you over the last 10 sec.

We understand that these changes will sound scary, but ask that you keep an open mind and try to comprehend the complete picture. Tuning may be pretty rough for a few builds as we iterate on these changes, so please be patient.

I'll try to answer questions as I have time, but please understand that we're all extremely busy trying to finish and polish things over here, so time is limited.

Thanks, everyone!