You also did mention something about not using blizzard II so you can avoid AoEs.
You haven't seen my friend's pulls. It's the entire room at once, or multiple rooms. The ground is red everywhere from aoes until at least half die. When they're near death and if the other dps is low I run in, Miasma 2 and might throw a Blizzard 2 or two, before putting Shadowflare back up and finishing them with Ruin 2. If the dps is high, I might have barely enough time to Deathflare and see everything dead.