Guide: how to defeat the final boss of Stormstout Brewery

After I had a disc priest go ballistic nerdrage on me today for not moving the boss (which is immobile and cannot be moved), it occurred to me that most people have never done the mechanics of this fight because they're used to blasting through it. That doesn't work with the TW scaling change, so here's how to actually kill it:

* Stand between the adds he spawns and the boss. If you don't they channel a beam onto the boss that heals it significantly. Also kill the adds after you do this. * Keep moving/jumping. A debuff constantly stacks on you that when it hits 10 stacks it stuns you for a really, really long time. Moving and jumping removes stacks of the debuff. * Occasionally he spits out a bunch of bubbles, you have to interact with one of them and it lets you float off the ground. If you don't, you'll be pacified and unable to attack or cast.