Hmm.. so if you use for example steam machine and mind flayer in your deck, you can't use water, fire or aether as your deck mark?
I think this one is going to be very interesting. The time royally sucks for me, but if I get up early enough (or don't go to bed the night before!) I'll be there. I think it will be a lot more enjoyable than last week's tourney. (I didn't like the meta that it produced, even if it was partially my own tourney idea :p) Two strategies immediately stick out to me from this list, but I think there will probably be quite a few viable decks this time around.