You've got too many cards and not enough lands. I would remove the Asha's Favors, Whispersilk, Scepter of Insight, and Pacifism. Also 2 Fabricates and add some lands. Your land count should be about 22-24.
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buh-roken
I agree with Ball Lightning, also you can't go wrong with Boggart Ram-Gang.
First off i have to say that this deck is cool, one of my friends has a deck like this and it rocks. Have you thought about adding Coat of Arms to your deck, it makes for a great finisher and it doesn't help your opponents like Mirror weave could. I'm just sayin'.