The_BLack_Eagle: Thanks for the suggestions. I will definitely add in Blade of the Bloodchief, Gatekeeper of Malakir and Guul Draz Assassin when I can find their promo arts or foils. I do however think that I want to keep Sword of Feast and Famine and All Is Dust in the deck though. The sword just opens up more mana for more uses for Olivia, Guul Draz, Imposter, etc, especially in late game. All Is Dust is a great boardwipe especially for the troublesome Gods and other enchantments that can cause some problems. I plan on taking out Planar Portal because I rarely get to have mana that allows me to use its ability and cast the intended card I want to play. I also plan to put Praetor's Grasp into my sideboard for my lgs EDH tournaments. If you can think of a third card to take out or is more of a sideboard card, that would be great.

Maybe Sangromancer? It isn't that bad of a card, I just don't think it's ability is very relevant.

Some suggestions I have would be Mana Echoes for the insane amount of mana you can pump out with some vamps out there. Bad Moon to pump all your vamps. Also probably some assorted mana ramp cards. Stuff like Worn Powerstone Basalt Monolith or Rakdos Signet. Also I think any black edh deck should have Yawgmoth's Bargain but that's just me. Looks like a sweet deck, but I'm a sucker for tribal decks. +1 from me