Daylight

Witchbane orb is THE best answer to reckoner, he cannot even target you for the triggered abilities damage. It makes it even more fun if he casts blasphemous act while you have that in play, he then HAS to target himself for 13 damage, unless he can make his things indestructible somehow.

I disagree with the addition of Thundermaw's, they do not really fit a control themed deck, I understand it allows you to go over the top and kill other planeswalkers, but in most circumstances so does searing spear.

looks wicked, have you thought of running crypt ghast? It's a pretty sweet card will also accelerate your deck a lot. Cheers.

Primeval is banned and wall of frost is a card that uses blue mana, that cannot be included in your deck list because it does not share a color identity with your commander.

the mox's are restricted in every format, if not banned

why not use spell rupture in place of syncopate?

invisible stalker would be nice in this deck has great potential with cipher

I think you should cut the keyrune for skullcrack that will give you the reach against midrange decks and prevent life gain against bant decks and decks using sphinx's revelation

It doesn't matter if you destroy the Detention sphere, the tokens are gone...

also detention sphere shuts down ETA

I would agree more with that play, you have lots of 'ramp', the keyrunes and the farseeks should be more than enough.

If you play it turn 2 that that situation doesn't apply, I think you really have to ask yourself with a card like that would it be better to run the 4th thrag, or another sphinx's revelation in place of that 0/2 creature that only allows you to fetch a basic land and put it into your hand

I don't know if I would consider gatecreeper a ramp spell, as it goes to your hand. with all of the keyrunes and 4 farseeks, you've got more than enough anyways.

Also have you considered using Geist of saint traft? I love the feeling of dread, such a good card works well if you want to go with an aggro/mid range approach. I feel that the lack of restoration angels especially given that you are already running Thrags and Armada wurms could be a mistake, so much synergy and value off of those plays a lone. Also might I suggest running Centaur healer? He seems to hit the board against heavy aggro decks at the exact opportune time, that and also synergy with Resto angel.

Whats the point of the gatecreeper vine? if your looking for a solid defender maybe try fog bank?

if you say so, I'm not trying to argue the fact that this deck is good, of course it is, it's meat and bones are a very well known deck archetype for this period in standard. Might be a little conceited to claim you're doing it better all things considered, quality of competition etc.

the way the version of this deck that the pro magic players play is just draw cards every turn anyways, so index is not needed.

Cut the index and 1-2 of your board sweeps for tamiyo/Jace

One suggestion I can make is perhaps adding some Oblivion rings for the removal and planeswalker hate. If you don't mind take a look at my grixis control
http://www.mtgvault.com/ViewDeck.aspx?DeckID=391259

Really looks like it curves out nicely. Well done! Take a look at my Grixis control, let me know what you think.
http://www.mtgvault.com/ViewDeck.aspx?DeckID=391259