Slowable (partially), Immune to Mezz and Root (wanting to "park" the mob was an interesting idea, but not feasable). Realistically, CC should not even be attempted - have everyone kill them all as quickly as possible at same time. After Tash and Malo nukes landed often (Magic based). I believe Fire to be a complete waste of time (mage in group complained about having to use magic based nukes), and Ice potentially worth using (unverified because we did not have any druids or wizards, and I didn't remember to ask the beastlords).