Will depend largely on bosses ExtremePain. Having minimum EH's to survive encounters will still be our primary concern, but even in Sunwell where the same avoidance debuff was first implemented, avoidance was VERY useful for fights like Brutallus. As has always been said in the past and will always be said in the forseeable future: Gear/Chant/Gem for the encounter.
The pain mistresses on jaraxxus hit pretty hard AND fast, so they're a great candidate for high avoidance too. You could probably tank jaraxxus himself naked.
Originally Posted by tuffmuffin
So for the pain mistress off tank have him wear avoidance. Again, read my previous post in bold.