I'm not talking PvE at all here.

I two rotations.

The first is:
- Howling Blast
- Frost Strike
- Necrotic Strike
- Death Coil

The DC can be toggled on and off.
I know Frost Strike is a lot more damage, for a Frost DK (who has prioritized Mastery)... but Death Coil can hit a target out of melee.



The second sequence is:
- Obliterate
- Frost Strike

When its a single target (usually the other sides Captain/General), and they're in melee range...
Obliterate seems to down them faster.
Against players, its almost always the Howling Blast sequence... unless its Obliterate with Hungering Cold.

I do have several dual-wield and Obliterate related talents/glyphs.