Early points in pyro is VERY good. I always open combat with incarnate 2ap, infusion(usually power to make him a fighter) 1ap, and haste on incarnate 1ap.
follow up turns always spit totems out. Even if an enemy kills them that is a huge plus that they wasted AP on a totem.
Conjuror goes well in any party, but they work well in my opinion with a ranger/wayfarer.
I would say heavy wits is huge, its best to get those summons out early in the turn.