Chieftain Mermok

Strategy
This one is HARD! Two conjurors at level 38 (one mentored) with master pets and nice gear, got badly owned three times before we killed him. A druid or shaman would probably have helped more than the second conjuror as a duo.

He had five 36v and 36vv fog grimmin companions in a group. He has wicked AOE, a stun/mez, and his direct damage is high as well. With the conjuror duo, we finally succeeded with:
 * make two tank pets
 * root the chieftain, and kill the group when they run over to attack us
 * die when the chieftain breaks root early and AOEs us by surprise
 * recast tank pets and run back to take on the chieftain without his helpers
 * send both tank pets over to chieftain, stay as far away as possible, and heal pets like crazy while throwing everything we have at him.