4 copies of your favorite spell is a necessity. So is Supreme Verdict.

@AtomicEmpire: I agree with you but this list is kinda old and I haven't updated it lately because this deck isn't pro-active enough for me anymore. That is the reason I prefer playing Jeskai Saheeli or the Jeskai Flash deck instead of a pure draw-go control list. But still, thanks for the comment!

3x Logic Knot is really high if you aren't running any Thought Scour. Not necessarily to say you should play scour, but rather that you should trim some of the knots. I'd go down 1-2 knot in favor of 1-2 Mana Leak. 25 lands is also a little high even for a control deck if you aren't running any Sphinx's Revelation or Secure the Wastes. I'd recommend cutting a land in favor of either another Gideon of the Trials, the fourth Cryptic Command, or, my personal favorite, a 1x Disallow. Stops Ulamog, the Ceaseless Hunger cast trigger & can turn Grapeshot into a 1 dmg spell no matter the storm count. Worst case scenario, it's still a Cancel.