Except that it absolutely slams Druids and is not as bad on Death knights and Paladins

Looks like Druid tanks are going to be even more scarce than ever. Paladin and DK tanks will be more popular than ever.

They took our Joeabes!

While I think this will discourage a lot of druid tanks, I know I'll still Bear tank.
I'm sad though, i'll only have 35% dodge raid buffed :(

Regardless, most druids have a ridiculous amount of Dodge if they're geared, and the fact that we'll take more consistent damage, and still have the highest Health Pools of all the other tanks should be no reason to get rid of your BARE TANK!

While sure, 20% is a lot for our only avoidance stat, remember that most end game druids peak around 65k HP right now. I know in raids I have 61k HP, and I have a feeling i'll still be a great tank choice for Icecrown.

The fact that Druids can take the most consecutive hits (not misses or dodges) without dying compared to any other tank still makes them great end-game/progression tanks for many fights.

While I am still a little pissed, it's not the end of the world. I'm still going to MT and have fun doing it successfully.

Thoraxes of Wildhammer.

For druids complaining that this will "kill druid tanks" please spend just a minute to think about this.

Outside of Icecrown
DK- 25% Dodge, 25% Parry = 50% Avoidance
Druid- 50% Dodge, 0% Parry (obviously) = 50% avoidance

Inside Icecrown:
DK- 5% Dodge, 25% Parry = 30% Avoidance (20% loss)
Druid- 30% Dodge, still 0% parry = 30% avoidance. (20% loss)

The ONLY case of any interest would be a tank that has less than 20% dodge (And I have yet to meet a progression tank since naxx 10 that had less than 20% dodge)

If there was such a tank, lets say a DK, then this would be how it would look:
Outside of Icecrown:
15% Dodge, 25% Parry = 40% Avoidance

Inside Icecrown:
0% dodge, 25% Parry = 25% Avoidance (15% loss)

Lesson: As long as tanks have at least 20% dodge, this will affect them equally. The only people who really get IMBA from this are tanks with less than 20% dodge (and you want them tanking for you why?)

While I'm no expert, I think there are three "styles" of tanks
Large health pool- Druid
High avoidance- DK
Lots of mitigation (shield block)- Warrior, Pally

Thus, a "nerf" to Health would hurt druids the most, a 20% HP might be 8,000 HP for a DK, Pally, or Warrior, for a druid that might be 10-12k health lost. Since they have the most HP, a flat % reduction would leave druids with the same less relative value, but less absolute HP.

A HP "nerf" would hurt druids the most.

Likewise, a mitigation "nerf" would hurt pallys and warriors the most.

This impending avoidance "nerf" will hurt DK's the most.

Spend a few minutes mulling this over before downrating, mmmmk?

To reply to Alden:

Lots of mitigation (shield block)- Warrior, Pally

While bears lack the great damage reducing moves of a Pally and Warrior using cooldowns, while such moves are down bears have the highest mitigation around and by a rather sizable amount. We're still the only tank capable of hitting the armor cap, though admittedly you need raid buffed and perhaps an armor trinket for that to happen short of ToGC, it is a moot point since a bear who hit eighty that day and is in all blues and crafted iLevel 200 gear will have a higher base damage mitigation through armor than a paladin/warrior in full ToC 25 gear.

On top of that, bears have the most consistent "block" percentage and short of another tank stacking all block value gear, they also have the highest value to block [high-end bears block ~2k, 50%+ of the time] via Savage Defense. And then our own ghetto shield block move in Bark Skin.

Then, as you said, we're already 10k HP minimum above our paladin friends in BiS gear. So yeah, while I agree with your post and found it to be well-put, nothing mitigates damage [physical, anyway] like a bear or even approaches it.

This will have interesting implications for DK threat. ~40% reduction in the number of Rune Strikes for most high-geared DK tanks.

If druids end up with less avoidance than other tanks after this effect, they had less avoidance before this effect.

Druid tanking effectiveness is based on having ridiculous gobs of health, which will get MORE USEFUL as boss damage goes down.

DKs take the biggest hit from this, as they lose a big chunk of threat from fewer dodge-triggered Rune Strikes.

And EVERYONE who posts about block as if it is comparable needs to check their heads. Block is a mitigation stat (and an inconsistent, crappy and mostly worthless one at that), not an avoidance stat. You can only effectively calculate avoidance on dodge vs. dodge+parry.