Hey there, i like the concept of your deck!

That being said, maybe some things to keep in mind: -most of your counterspells are 4-mana, might want to consider Countersquall, Mana Drain ($$$ I know), Spell Pierce, etc. -In EDH, there is no such thing as a sideboard. Things that refer to ''owning from outside the game'' can only target cards currently in exile. Unless of course your playgroup allows this, but considering the sheer amount of infinite-mana comboes in EDH it feels far too easy to insta-win like that.-Reanimate is a 1-mana spell that does the same thing as Animate Dead, but less fragile. in a 40-life format, worth the tradeoff any day.

Have fun playing this!

I removed the tainted isle, as it seldom has swamps to make it do anything but give colourless mana. I may, after some testing, remove some of the dork maker lands for swamps and put it back. I also took the Underground Sea from another deck, as I am finding this one stronger. I added Deadeye Navigator, after I found one at my LGS

Thanks for the input mooserama. I'll keep an eye out for the cards you mentioned, and have already pulled the coax out.

Removed psychic rebuttal, added force spike. Too few spells targeting me and too few instants overall to steal a spell. We'll hope to see force spike in opening hands. Removed krovikan vampire, added another swamp. Every time I saw krovican, I wished I had another mana to cast one of my stronger 6cmc spells. His ability seldom worked, and he most often gets sacrificed which would be better as a 1 or 2 cmc anyways.

Removed eternal dominion for chromatic lantern. Although the idea of E D is good, and tempting, it's too costly, both in cmc and the epic drawback of just their cards, and only one per turn. Silumgar does better already on his own. Chromatic lantern also helps with ramp, fixing, AND activating stolen abilities.