Originally Posted by
Morlo
Rune Regeneration definitely needs more haste to compensate. Also, with 2H frost Haste should be over Mastery because of the 2H passive, 50% more Obliterate damage and 35% more damage from Auto Attack. That prioritizes Obliterate with a Killing Machine proc over anything else with Howling Blast + Rime coming in 2nd priority. Haste is adding to the Rune regen and the amount of KM procs from auto attacks. More KM procs equates to more damage from Obliterate KM procs. Mastery just increases frost damage. Mastery is favored for DW becuase of the DW passive, the increase to Frost Strike. With DW using Frost Strike and Howling Blast as their heavy hitters, the increase to Mastery, frost damage is much needed. It's an absolute wonderful guide though! Everything I remember about MoP DK's. Can't wait to get home tonight and get my hands dirty!