Yeah take a permanent nap in a deep unholy grave Thaddius! That fight is so much fun for Heroic Naxxramas it took us three times. The very first try could of made everyone eyes bleed. Its was running flawless. We were up against the enrage timer and the last person dropped for the wipe with Thaddius at around 115k health. That was sick.
But we got a few more practice in and got him on the 3rd try. Everything cleared except the very last 2 Bosses in Heroic Naxxramas. Was a good night in Heroic Naxx and a great job by the guild 25 man raid tonight. And I left with Epic Loots for the pillaging.