And just a few draws shows me an average of hitting my first cascade spell on turn 4, and before that, I'm not really doing much :/
Just some food for thought. There is a real limitation to running cards with 2+ mana cycling costs. You don't get to see as many cards. I'd recommend picking 1 or 2 finishers with 2 mana cycling costs, and committing to them. Don't cut
Deadshot Minotaur, as against almost any blue deck, he represents a 2 for 1, which is nice to have around.
I feel like your list is greedy, hoping for too many things to just work out in your favor. It's ok to be a little greedy, but you need to make sure the rest of your deck is consistent enough to support it. You have 2 copies of
faithless looting and 2 ulamog's crushers in your list. That means that if you draw an ulamogs crusher, you NEED your cascade spell to hit a
faithless looting, then you NEED to either draw
exhume, or another cascading spell to capitalize on discarding the crusher. You'd be better off replacing those 4 cards with 4 copies of
gnaw to the bone, as it will help you survive to the late game, where you can
exhume multiple times to go over your opponent's game plan, and won't get in the way of finding the right spell you need when you cascade.
The same is true with your 2/2 split with
doom blade and
terminate. You're better off just committing to
terminate to guarantee that when you need to hit a removal spell, it can remove what you want. But you're best off not making cascade a 50/50 chance to get the effect you need to get.