Just curious if we can still play DW frost by completely ignoring Obliterate and using only HB/FS and spending UH runes on DnD/Defile and plague strike. I'd imagine with how many cleave fights there are it would work pretty well. And if so, roughly how much mastery should you aim for?
edit: How much mastery should you aim for in order for it to be viable, is what I meant to say.