use surgical extraction in sideboard other then memoricide cause then you can actually use it and only cost two life once its in the graveyard. its a good way to cripple decks.
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Also can use quicksilver amulet in this deck get the costly monsters out way quicker, plus they replinted it in M12 :)
If you want a plan for decks that can counter your creature spells a good idea is to have summoning trap in your sideboard. just a thought if you ever needed it.