your running mainly deathtouch which in theory is a good idea. However, with deathtouch overrun is not necessary. try putting in more cards that give your creatures first strike. also take out the cards that force your opponets creaturs to fight because they might suprise you with power boosts on there creaturs. one last thing try putting something else besides deathtouch in the deck as back ups because like i said you never know when someone will give there creature an unexpected boost.
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firs take out coat of arms and Patriarch's Bidding. With inistrad and dark ascencion out a lot of people are running creature based decks in edh. Also, try putting a witchbane orb in so you don't get screwed by the burn and mill decks that are popping up everywear. also sol ring, spellbook, swiftfoot boots and lighting greaves are a must have for any edh deck.
Not a Problem
Well panzy your running a mon-blue deck. So, my suggestion is to put a little more controle in it. It seams to me that you are trying to work around the draw ability to much. That was one of the problems that i was having. So, what i did was put multiple ways to win. Granted you could win with sturmgiest but that is still to dependent on drawing. So, here is the link to my deck. http://www.mtgvault.com/ViewDeck.aspx?DeckID=285992 It May be abouve the price range you want to pay for it so if your having trouble getting some of the cards substitute the runchanters pikes for trep. blades. also you can take jace out for something like ponder.
Take out coat of arms. With inistrad and now dark ascencion out a lot of people are using creature based decks. So, even thoug your pumping up your slivers it's really usless if your opponents creatures are getting pumped up to. Trust me I kicked a sliver decks but because i was running mono vamps. while he had coat of arms on the field.
I am guesing that the only reason that you have twisted image in your deck is for the draw ability. The deck would probably run better if you replaced the twisted images with ponder.