Astrologian and even thought it's not my main (I'm still a warrior), I like the fact that I can be a shield based healer without using pets (I was a scholar in ARR, but I don't like the total lack of customization of the pets AND how they're so clunky to maneuver).
That and I have a fond likeness for the tarot cards.

Now I just wish that healers don't have to dps and I'll probably make it my main. Until then, tanking a go go baby!