First of all, the best thing to do against stoneblade is not to over-extend. Supreme verdict and EE aren't so bad when you're going for the symbiote/visionary interaction. Cabal therapy gets rid of the jitte that sfm WILL find and protects your NO play as well. If you don't believe me, listen to a
SCG Open champion.
Domri rade is terrible for this deck. There's no library manipulation so you're going to whiff 50% of the time on the +1 ability. The -2 ability will generally be worse for us than our opponent. Lastly, the ultimate takes 4 additional turns to activate. Please don't tell me you're running domri rade because of a singleton sylvan library in your sb. Running jitte is fine but I personally don't run it since there's no way for me to tutor for it. I don't board in teeg because he shuts down gsz and NO. Ezuri does not beat perish since perish states the creatures can't be regenerated.
Aside from NO, the cards you board out aren't too different than those of people on this thread. Keep in mind, it's important to bait out counters early with gsz and glimpse to allow you to safely play NO later. As I mentioned earlier, cabal therapy helps this greatly.
I'm not really afraid of GoST since our nettle sentinels can block him all day long. Furthermore, deathblade decks probably won't have access to perish. This means bringing in progenitus is an option.