Soldato
It wasn't a hybrid when I was playing in Cata! Was a healer focused more on absorbs and damage prevention back then. It's more healing through damage now..?
I recently leveled my priest to 100 playing disc and having a blast.
I've healed on a Shaman since Vanilla, Druid on and off since vanilla and a pala on and off since LK and Disc is mega fun to play.
Majority of your heals comes from your damage. You can still shield a bit but its not a major part of it. Its probably the most engaging of all the healing specs because of the damage component. I've been really enjoying it.
I don't usually PVP but did some the other day and enjoyed my self a lot.