It's interesting that you mention the armor bonus talent. The fun thing that I was doing for our kill was bouncing my chains off of the tanks a majority of the time. Due to our positioning they'd be able to jump from the tank to almost any of the rest of the soak group quite easily and looking at
our warrior tank's buff gains for the fight, he gained Ancestral Fortitude 12 times and Inspiration 5 times, so 255 seconds of uptime not counting the buffs getting refreshed and lasting longer than 15 seconds, our bear tank gained AF 16 times and Inspiration 7 times which is 345 seconds uptime(almost the entire fight). 25% armor is nothing to scoff at if you've got a warrior as one of your tanks, every bit helps especially when he gets Stomped.