I keep a pet charmed the entire time in Nizara. I get the one with dirge buffs for their NPC group buff. It also Flame Claws all the time, which is an extra stun on everything, including those immune to stun, plus it's nice that one Flame Claw can do 10k+ damage.
I usually grab one of the ^^^ in one of the basement floors that are alone because if you charm the ones in the groups of 3, it has the chance to randomly respawn during a fight, and when it resets, it resets to a new encounter with three new mobs.
The dirge mobs change names every time.