orc warriors in the same camps are ready to attack my young troll (prior to killing any in zone and only 3-4 of the little orcs in Innothule Swamp) whereas these clerics are indifferent.
AlthoughI haven't engaged these guys much I can say they cast sicken and (I think) Tainted breath along with frost rift. I did see one with some glowing gem in it's left hand, but it was looted from under me so I didn't get to see what it was. If in a group of Orcs, attack this one first.