i checked the armory and i noticed that none of the gear even had like an armour patch or anything on it. his gear looks similar to my DK's when i hit 80 for the most part but i had something on almost everything i could be it enchants or even just one of the random stam arcanums you can get (took me a while to grind out the rep for the tank one). i think the extra 108 stam from even the heavy borean armour kits would help a little. just something to think about. also grab some rhinoliscious wyrmsteaks or some other stat food of your choice for a quick 400 hp. also getting the 540 def might help a little more i was around 550ish for my first heroic and i dont think ive been crit at all but im not sure ill try and run something tonight and see for sure.

also heres the be.imba.hu report for the tank. http://be.imba.hu/?zone=US&realm=Fiz...racter=Dejavou

it gives advice on proper chants and whatnot. anyways thats my two cents hope it helps a little