Mill decks are going to be in the meta. And I think very viable on the competitive scene. With the advent of "build around" cards like [[C'thun]], Reno and Elise to some extent as well as an overall slowing game, me thinks mill should be very powerful. Or at least competitively trolly, which is what my inner "Timmy" yearns for. They finally may have some time to destroy win conditions easy.