Mongrr had fraps up and running last week, and we got our kills caught on tape. This was our first Deathbringer kill, and we one shot him the day the instance launched. To be fair, we had a few more challenges with him the second week due to some personnel shifting and our mage getting his account hacked.
With two earthbind totems, plus a boomkin's knockback, the adds were relatively easy to handle and we got the achievement as well. The fight seemed undertuned compated to what I'd heard from the PTR, though I'm sure it's a lot more difficult on 25s.
Enjoy, and make sure to watch it in HD.