My dungeon pve comp for MoP and why I chose warrior over other tanks.

[dancook]

So changing one tank to another is outside of the box?
20% extra crit chance sounds nice but lava burst got 100% crit chance so i dont think it will be that good.

Wowhead says

Throw down a war banner at your feet that increases the critical damage of party or raid members within 30 yards of the banner by 20%. Lasts 10 sec.

20% crit damage, not chance - unless it's wrong?