Thanks TheSwarmer. You are right, if Sigil sticks it gets stupid real fast. I will add another in and see how it goes.So far between the Brain Maggot's and Banishing light it has been doing pretty well, but yeah it still needs more tweaking. Appreciate the comment.
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Are you looking to keep it budget? If not I would trade out Elvish Mystic for Sylvan Caryatid. Add in Nyx-Fleece Ram, Kin-Tree Invocation, Athreos, God of Passage, Sultai Flayer, and maybe Nissa, Worldwaker. Also fetch lands could help for mana fixing. I have a non budget deck on here that has a similar style. You can check it out here http://www.mtgvault.com/steomi/decks/bloodsucking-walls/ use what you want out of it, it's a very fun deck to use.
Have you thought about using Rattleclaw Mystic for more mana? Getting 2 for 1 is nice and morphing for 5 is an easy way to get Kruphix out a turn earlier.I also made a deck building around Villainous Wealth. http://www.mtgvault.com/steomi/decks/bug-fun/