From what I can gather, every tanking class got hit really hard. Thunderclaps damage got halfed, and Shockwave doesn't hit nearly hard enough unless you have 3 stacks of thunderstruck, which is hard to do because spending 18 seconds getting that is pointless. Rage got weird too, I'm either rage capped or have an empty bar, which I can't really explain, there doesn't seem to be any middle ground.
Plus new disc is insanely fun so I've been healing more.
I've been healing in shadow gear, so Smite is alot more useful than Heal, which I'm not sure if we're supposed to be using yet. Been gearing my Mage up too. Arcane got hella fun, 65k crits are nice.