When I play Frost DK and think of Obliterates and Howling Blast as rune dumps, I don't know where Remorseless Winter fits for the fact it costs a rune, eats a GCD, and does minimal damage in all honesty. Also the fact it's not exactly on my mind when in the heat of fighting.
So I want to know how others are utilizing it. Right now I have Remorseless Winter set to a bizarrely intricate cast sequence macro with Obliterate that ensures if I'm fighting, it'll cast in between my rotations without the need for thinking about its use, but this means it's out of my control if I wanted to ever use "Winter is Coming."