I've beaten once with my 5 man group, but it was the anti-fun and only happened after several bad attempts.

To save time, I only stop running when I reach the center of the next wave, fire nova totem when it's up and always consecrate beneath my group to kill all of the nonelite zombies.

The first boss involves keeping your finger on the heal button.

Three fire elementals(all I have) usually kills all of the ghouls on the second boss

and give the third boss a hug, as stated

my resto shaman has almost 20k mana which makes it a chore to go oom, so idk my bff jill