Cathedral of Eternal Night
So I haven't managed to beat any bosses yet w/ a hunter + heals team. The first boss, Agronox, casts Timber Smash (http://www.wowhead.com/spell=235751/timber-smash) on a random party member and one shots them. I don't think he's happy w/ a pet tank. Possibly a bug or maybe by design. At least for the time being it's going to be a wall unless we are able to cheese him with maybe the death prevention trink + brez.
Trash felt really rough. My team is only 870ish though, so some of you might have a better time.
I don't think the mechanics will favour an all tank team either with the Fulminating lashers, but I'll be giving it a try with my pallies too.