105 SMolo Mage, Silver
I guessed that this would be another t4 named where you have to avoid the hate list and I think that's pretty much it. Bonus is that my pet was pretty much imune to anything he was doing.
My healer merc was drained of mana pretty quick, so I left her on passive as Tonmek wasn't dishing out much damage. He rampaged a bit but I just stayed back and avoided it.
I just let air pet grind him down with an occaisional pet heal thrown in. Swarm pets helped speed things up. I did pick up a few mana drains and was depleted near end but pet was hardly taking any damage so no sweat.