My personal opinion is that this is pretty close for optimal build, at least for me. I'm only thinking of adding 1 Antimatter (or 2) and going up to 31-32 cards while doing so. But like I said, that's just my opinion and since everyone has their own styles for playing, having those added cards may fit your style better. Please post here later how your changes have affected to results.
Here is my version:
6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6rn 6rn 6rn 6rn 6rn 6rn 6u9 6u9 71c 71c 77f 77i 7aj 7gp 7jt 7k5 7k5 7q5 7q5 7q8 7q8 7ri 7ri 7t9 7t9 80h 80h 80j
Some word for extension:
it was big dilema about purify and second "STALKER". I konw it is not really loner more, but with this creature I can give a close lock on the opponents. Probably - 1 Crusader, -1 quintessence, +1 purify, +1 aflatoxin or momentum. (Some times it was hard to pass the walls if pulverizer was my last card)
towers: because of 2 Hourglasses it's need more time quantas. But fully quantum towers could be perfect.
pandemonium: creature controll if aflatoxin is not enough. It is fun!
Electrum Hourglass: for 40 card It' need to speed up.
Steal: To steal is much better than destroy. I love it.
quintessence: one more for second crusader.
Protect artifact: agains quanta destroyere or stealing. DON'T PUT ON YOUR WEAPON
I did sometimes. But If you have two ethernitized crusader you can put pulverizer into slot and you can prtect it. I used to put on mindgate or quantum towers.
I cannot count exactly my results. Enough high and EM rate is enough.