It's AI3, you either go for EMs or you ignore defense entirely. This deck takes the second route, and therefore should focus on PURE damage.
Take out the mind flayer and the basilisk blood for a start. The next changes would be -1 staff, +1 titan, arsenic, or morning glory. Finally switch one of the deflags with a precognition for extra speed and you're good to go.
Once you've tried out those changes, tweak it to your liking as you upgrade stuff.