Super interesting design - god, it just feels god when you get the feeling R&D made something with eternal formats in mind. Eldrazi gets a boost from this and should be fun to brnig out of retirement. What else? Maybe some of those Blue Moon decks that were running Ancient Tomb (and even Thought-Knot in some cases)? And could this see play in an Eldrazi shops decks like the ones with TKS/Smasher that were popular for a while? Slow down opposing shops decks/blue stew decks, make your own shops at least useable for casting big Eldrazi?
Anyway... think its fair to say this set already looks like a massive home run in both game play and flavour. Looking forward to it!