So I've never really played DW that much and I was just trying to understand it a little better.
Basically I get the masterfrost aspect where you stack master for high frost damage since HB and frost strike are your priorities but I'm trying to fully understand why you always want 1 unholy rune up, is that so that RC or BT will only pop a death/frost rune?
If that is the case could you ignore anything that uses your unholy runes (with the exception of once in a blue moon) as well as ignore blood plague since it's extremely low damage by itself and you'll be ignoring Obl anyways? It would definitely promote using plague leach pretty much on CD.
I'm sort of hitting a mental block with this one and I can't seem to find my answer. It trivializes the priority if you ignore your unholy runes but I also don't know how much you would be crippling your DPS by doing it. I'll have to test it out on a dumby target some time but I'm curious.