nitsu

This is true, I shoulda looked more at the speed of the deck before stating that, sorry.
Why no fetches for extra cobra triggers though?

My teacher has a giant deck, this annhilates its, i love how this is constructed.
Why put no removal though? And why not add more fetch lands for extra cobra kicks?

I think (I may be wrong) the end step is skipped with Sundial, and the turn skips all remaining steps and goes to the next upkeep.

The Zendikar block cycles out when Innistrad comes out, which is sometime in September.
Currently: M11, Zendikar, Worldwake, Rise of the Edlrazi, Scars of Mirrodin, Mirrodin Besieged, New Phyrexia, and M12 is legal in standard play.

Into the roil is standard until Innistrad comes out.

This is amazing, congrats on exploiting the hell out of that card, I knew it would be good, but never thought it would be this good.

You could always throw in Overwhelming stampede in, I think you can ditch Ezuri's Archers and a Carnage Wurm for 2 Stampedes.

I like this but I'd swap Mind's Unbound for Into the Roil just so you can protect jace a bit and I think at turn 6 you'll have ponder/divination and Looter available to use to keep you drawing.
Nice build though, I like it and it does seem pretty solid.

You're definately gonna want land ramp cards with omnath and cobra, and you might want to consider primeval titan if money isn't an issue (I'm assuming its not with all these cards).
I'd drop the lich mirrors (they aren't as good as they seem because your opponents keep all their stuff and you start at 0) and the etched monstrocity for 3 primeval titans and 2 primordial hydra. I'd drop 1-2 opals and 2 batterskulls for 3-4 beast within. And lastly I'd drop 1 Lux cannon and 1 Sword of Body and Mind for 2 Garrul Wildspeaker.

I know beast within isn't rare but it'll help, and its one good uncommon!

reasons:
Dropping lich mirrors: like I said, you're set pretty far back in the game when they're used, so unless you know you can kill them within like 2 turns, I don't think they'd help as much as they'd hurt.
Dropping etched monstrocity: would you rather have a 5/5 for 5 or a 6/6 for 6 that drops 2 lands?
Adding Primordial Hydra: Have you seen this thing? If you protect it from doom blade/go for the throats and wait a few turns, this guy gets HUGE.
Dropping an opal: ya, you lose a chance of drawing it, but the legend rule is still there so I personally would stop at 2 instead of 3, but 3 would be tops (unless you have a way to kill it like kuldotha does)
Dropping batterskulls: without stoneforge, its a good card, but not great. Given the option of this and beast within, I'd rather kill it than have a chance to swing with it and hope it hits.
Dropping a lux: I think three is enough personally, and what you can add in its place would be better.
Dropping a Body and Mind: After its on the field, the only things really threatening it is beast within and into the roil (that the sword would protect it from), so I'd just drop one at least.
Adding Garruk Wildspeaker: Double tap lands plus Overrun. Just great when you need a blocker, 2 more lands for an earlier Titan, or swinging for the game.

I'm really interested in trying out extraction in standard after seeing this and your older decks, how is it holding up against other FNM decks?