My Extended Mill Deck that i use in card shop tournaments, this deck has won against U/W control, mono black vampire, mimic vat imprint deck, eldrazi ramp, mono red burn and land destruction, and, old school discard. The only real frustration is when people use counter mill cards, but i can always combat it with removal cards. All in all i was sceptical of this deck doing good but it got to many finals of tournaments at local shops (lost to decks with beta/alpha rare cards, it was the card shop owners deck, lol). I know what people might thing at first, it only has 18 land, yes im aware its less than the standard 20-24, but for this deck, i dont need that much mana, i have my dimir aqueducts to produce 2 mana, but the point of them being there is to combo with hedron crabs to give me two turns of cheap mill or possibly a constant loop of 3 (or 6 if i can get 2 hedrons) each turn by sending back dimir aqueducts with another one. If i have to use leyline of the void, i will always always always put in my helm of obedience, hoping to get leyline opening turn drop, and just remove my twincasts, haunting echos, and 2 dissapation field. If i get both helm and leyline out, the game is over, but i just dont want to rely on those to win a game unless im really desperately lossing a first match without contest. in a nutshell, my deck takes about 3 or 4 turns to get real milling out of it, but is worth using against many decks.