Defensive effects on the cards are quite strong.
Bole being back is what half the old astro lovers have wanted for ages.
increased healing potency is amazing. The fact that you can use it on anyone, even non-healers that apply shields like warrior is exciting.
A regen/shield is just nice.

Astro's who say we don't need more single target mitigations are being silly. Single target OGCD optimization is already a lot of double-weaving OGCD's. If they up damage even just a little bit in Dawntrail we will have a use for all of our OGCD's just like we did in savage this expansion. I'm actually stunned a little that people are complaining the healing classes are getting more heals. The goal for this game is to move a little further away from only caring about dps. This is a move in the right direction as long as dawn trail fights are tuned around the changes. (which obviously they will be. we've never had an expansion not do that)