Two dwarfs (and Inferus Sus) does it again! by request, we completed Hold for Reinforcements on elite - level appropriate, of course - with our team of artificers (and my caster from Inferus) exclusively not killing a single mob...our dogs did the work for us!
It took us 3 attempts, we had to use a few tricks (including a hireling cleric, my caster passing out resists, and me knocking out coyle throughout the duration of the quest) not a single party member killed a single mob - not so much as a single point of damage. the kills were exclusively the dogs.
Oh, and not only did none of the players kill anything - we were 3 players controlling 5 boxes, (6th hireling healer just for safety on coyle).