I know that holding aggro now a-days is not the same battle it used to be... as long as you hit first and are in Frost Presence (FP) then holding threat is not an issue, but what about damage mitigation. We DKs are supposed to use parry and dodge for our prime mitigation, but what tallents and abilities make us = to warriors when mitigating damage?

I know we get tallents for migitating Magic damage, but is there some tallent I am missing or am I thinking about a spell the wrong way that would help keep me alive?

Most of the blood talents that COULD be dmg mitigation tallents are below. Getting extra health back is only so good when you take 9k damage as opposed to 7k with the right stats. The Blood talents that are kinda tank-like are at the bottom.

Tallents i Know are for taking
Blood-
1 Blade Barier
4 spell deflect
5 Mark of Blood
9 Will of The Necropolis

Frost-
1 Toughness
1 Imp Icy Touch
3 Lichbourne (3min cooldown)
3 Icy Talons
5 Frigid Deadplate
7 Frost Aura
8 UnBreakable Aromor
9 Acclimation

Unholy-
1 Anticipation
6 Magic Supression
7 Anti-magic Zone
8 Bone Shield

Let me know if I am missing talents or if I'm not looking at particular talents in the right light.

Blood -maybe-tank-like talents
3 Rune tap
4 Imp Rune Tap
4 vendetta
7 Blood Worms
7 Blood Aura
8 Vampiric Blood

- Ruix

upon looking at the list, im frustrated cause Unholy is lacking in taking talents. The other trees appear to be fine. I guess blizzard doesnt want another AoE tank like they had with Paladins.

I found that wow-wiki has a really good answer to DK tanking which will hold true post patch 3.1

http://www.wowwiki.com/Death_Knights_as_Tanks

DKs have a selection of great mitigation ABILITIES, and fewer tallents. Each DK will have Icebound fortitude and frost fever. Each tree gives you more TRICKS to use in combat to keep you alive. Its annoying in that a good DK tank should be popping his tricks as often as possible. Whereas other tanking classes get shields we have to stack particular gear, but we also do AoE tanking pretty damn well. Its the price we pay for being kickass.