First off, this is my first tanking toon so i have no other tanking experiences to compare to. I have only starting tanking for about two weeks or so and last week i got in voa10 as an off tank, I notice that the boss is hitting me for around 14k per hit (the ice boss) I am just wondering if thats too much damage to take as a tank? I also tanked in toc 10 with my friends and commented that my hp is dropping too fast...i know that the black heart would help me a little bit but i have yet to seen it drop after going there for 20+ times..=/
Anyways here is my character http://www.wowarmory.com/character-s...rak&cn=Kanadra (i just got the boot and the back today so i dont know much less damage i will take just yet, i was using http://www.wowarmory.com/item-info.xml?i=50207 and http://www.wowarmory.com/item-info.xml?i=40722 before that..)
Also would getting the Skeleton Key help me more than getting the back? I can still return the back so any help would be awesome!
Keep trying for the Black Heart. Keep the cloak and gem it with stamina and enchant it with armor. If you get another 60 frost emblems buy the 264 belt and enjoy the stamina boost as well as 1000 additional armor, save the Skeleton Key for later.
It's been stated elsewhere that DK's are a cooldown based tank. You have to remember to be actively used IBF, UBA and RS to keep your avoidance and mitigation buffs up. Buffs from trinkets help in this manner as well. Your gear and spec don't indicate that you, specifically, are any squishier than anyone else of your class at your gear level.
Also, don't forget that The Black Heart drops from regular ToC, not heroic. My feral druid took 20+ tries to get the boots from H HoR and near 20 tries to get the ArP trinket from reg ToC so I sympathize.