Ghostcrawler announced a ton of upcoming death knight changes in
this post.
Although most of these changes were mostly bug fixes or improvements, there are a few some might call 'nerfs', although you'd have to be cautious as to what label as such since they made a significant overhaul to DK tanking. The amounts Bone Shield and Icebound Fortitude reduced incoming damage were reduced but the mitigation from Frost Presence was increased in return.
As such, a lot of these changes alter the current Death Knight playstyle hence I felt that due to the sheer number of them a thread for it was appropriate.
From
official PTR patch notes:
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* All multi-rune abilities generate 15 runic power.
* Anti-Magic Shell: The cooldown has been lowered to 45 sec from 60 sec.
* Anti-Magic Zone: This ability’s duration has been cut to 10 seconds.
* 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).
* Killing Machine: Instead of a chance to be triggered on critical strike, this talent now has a chance to be triggered on each swing based on the swing time of the weapon (slow weapons more likely, fast weapons less likely).
* Mark of Blood: The total amount of healing this can grant is now capped based on a percentage of standard creature health at the target’s level.
* 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 secondsseconds and now has a 15 minute cooldown.
* Summon Gargoyle: Damage dealt by the Gargoyle reduced by approximately 20% and maximum duration cut to 30 seconds.
* Unholy Blight had had its cost reduced from 60 to 40 runic power.
* Wandering Plague will now properly reset after being castand now considers the resilience of the target in determining its chance to be triggered.
* Vampiric Blood (DK) changed from 20% health / 50% healing to 15 % health / 35% healing.
* 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. It no longer affects the cooldown of Anti-Magic Shell and retains the current damage reduction bonus.
* Glyph of Death and Decay has been changed to grant 20% additional damage instead of its current effect.