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I was playing a game against my buddy one time where he was playing a wizards deck that had Curse of the Bloody Tome in it. The deck wasn't actually a mill deck, but the game stalled and I ended up losing due to that Curse. I latched onto the idea of wanting a mill deck and promptly traded my buddy for the copies he had of the Curse. I have had a constantly rotating mill deck around those Curse cards as I open new mill cards or trade for them. The deck originally worked around Doorkeeper and a bunch of defenders. When I opened Phenax the deck started to click better with the combo of high toughness defenders and Phenax's ability. Eventually the Doorkeepers fell out as I needed more answers for flying creatures, but the core concept remained of using high toughness creatures to drag the game out while milling. What you see above is a theory in progress of how to take the deck to the next step (without going stupid money, so no Glimpse the Unthinkable).
Drop your defensive creatures early to keep you clean. Murder anything that is going to go through or over what you have for defense. Mill away while you stall. When Phenax gets out use all your toughies to mill on the backside of your opponent's turn. Consuming Aberration and Jace's Phantasm are the alternate win cons if it looks like you won't be able to get the mill all the way. If you have Phenax out using his ability with the Aberration's insane toughness is my favorite way to mill out the end.
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