Casual-budget infect brew based off Blighted Agent

I'm still trying to figure out the balance between the fast removal and the fast infection in here.Please give any advice or comments, thanks!

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For faster, instant speed buffs I traded out Trepanation Blade for Vampire's Bite ALSO Thrummingbird really doesn't add much to the deck's speed, so I removed them in favor of a couple of Serum Visions

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