1-88 w/ 5 Boomkins , few exceptions

[rapstar]

There used to be a trick with weaponmaster back during MoP where you would aggro him and run him all the way back to the closed in entrance area to avoid all of the flying blades and crap. You still had to dodge his big wind up hit though. Not sure if that still works.

BTW I find boomies to be particularly dependent upon gear and artifact traits for both damage and damage mitigation. For example you double your armour via artifact traits. So pre-110 taking things is a bit tougher.