Patch 3.0.8 and DK Tanking

From WoWInsider:

• All multi-rune abilities generate 15 runic power.
• Anti-Magic Shell: The cooldown has been lowered to 45 sec from 60 sec.
• Blood Aura now grants 2/4% instead of 1/2% healing.
• Blood Presence now grants 2/4% instead of 1/2% healing.
• Bloody Strikes will receive extra bonus damage from Pestilence.
  
• Bone Shield: The mitigation has been reduced from 40% to 20%.
  
• Corpse Explosion: Damage increased substantially, added 5 sec. cooldown, and changed cost to 40 runic power.
  
• Dark Command: Range increased to 30 yards.
  
• Death Pact now grants 40% instead of 20% healing.
  
• Frost Presence: The bonus armor has been increased from 60 to 80% and magic damage reduction increased from 5 to 15%.
  
• Heart Strike no longer has a haste debuff but will now be able to strike two targets.
  
• Horn of Winter now has no cost and grants 10 runic power in addition to its stat buff, but has a 20 second cooldown.
  
• Howling Blast: Cooldown removed.
  
• Icebound Fortitude now reduces damage by 20% instead of 50%. The amount of damage reduced increases with bonus Defense (to about 35% for 540 Defense, but can go higher).
  
• Night of the Dead now grants 40/70% passive area spell avoidance to your pet in addition to its current effects.
  
• Outbreak will no longer receive bonus damage from pestilence. The bonus from Plague Strike and Blood Boil has been increased slightly.
  
• Pestilence no longer has a 10 seconds cooldown.
  
• Raise Dead has now been split into two spells:
  
• o Raise Dead now raises a ghoul or pet ghoul (if talented). Requires corpse dust if no humanoid corpse is nearby.
  
• o Raise Ally now raises a fallen party member as a ghoul and has no reagent. Available at level 72. This should now last for 4 minutes.
  
• Rune of the Stoneskin Gargoyle (two-handed only) now grants 25 Defense and 2% Stamina.
  
• Rune Strike: Damage decreased from 200% to 150% but threat increased to 150% from 100%.
  
• Shadow of Death: The duration has been changed from 45 seconds to 25 seconds.
  
• Unholy Blight had had its cost reduced from 60 to 40 runic power.
  
• Wandering Plague will now properly reset after being cast.
  
• Vampiric Blood: In addition to its current effects, also adds 20% health temporarily.
  
• Will of the Necropolis will now reduce the damage of any attack that takes the DK below 35% health by 5 /10/15% instead of boosting armor when wounded.
  

The Frost Presence change is great, more physical and magic damage mitigation, the reduction in Icebound Fortitude is not good, but is expected due Frost Presence going up.

Blizzard realized we were relaying too much in cooldowns to mitigate damage, which made some inconsistency incoming, healers don't like that, but we were also able to alleviate large portion of spike damage, even if for a short time, that could be considering OP, key word is could, low tanking-experience guy posting here, so now we're gonna get higher proactive mitigation with Frost Presence.

Unholy tanks got shafted here with the 40%->20% in Bone Shield, thats another example of blizzard's thoughts on cooldown mitigation.