I suggest making sure that your land ratio is 24:36 as vamps are so hard to play when you have absolutly no mana, I also suggest taking out the blades and adding in a nocturnas or two.
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Also I suggest putting in a Garruk.
Well you currently have too many double ups. I suggest putting in more Savras and dredge cards and taking out cards such as Rolling Spoil and Bestial Menace, because the mana cost is way too high.