Hawke
Explorer
So the Invoker's a Controller? How do these invocations or spells or however they are called affect the battlefield?
Prayers

As far as level 1 encounters, one pushes targets, one helps allies AC, one ranged immobilizes, one targets up to 3 and dazes them.
The most exciting/new part of the whole thing I think has to be with the different fluff (Invokers are more friendly to gods that aren't theirs and don't use holy symbols as they channel the gods energy but can use staffs/rods/nothing) and the Summon Angel of Fire (Daily 1), my guess is more summons will come as dailies.
Of the other 3 dailies, one targets a single guy with some nasty ongoing damage and the other two are pretty nice close bursts. Compare to his at-wills which are all ranged of some sort.
I was kind of bummed that he doesn't get extra power choices (druid's extra at-will, wizard's extra daily). Cause with that, it'd be hard as heck for me not to choose the summon just to play with it anytime soon. I guess I could retrain as I level to try out the others.