With the way Runic Empowerment works for Frost I don't think you're going to get a satisfactory single-target rotation with Obliterate. Unholy opens up a lot of options because their Runic Empowerment isn't random. I intend to try out some different DPS sequences today at some point and see.

@Kromtor:
Vis a vis Fat Tire I'm referring to his Kool Aid post and then the one where he admits he just wanted to come shit on the DK's.

@All:
The team is in its infancy. There are a lot of people who've been 2k+ in arenas multiboxing that are playing this team now. I think that without a doubt the DK's are more viable as an arena team than any other melee variety due to defensive cooldowns and their ability to stay on target.