This deck is not too powerful, but it can beat most AI3 opponents fairly well. I haven't tested it against more serious opponents (arena or fg) and I doubt it would be strong enough, but it is fun to play it.
The deck:
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4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vl 4vn 4vn 4vn 4vn 4vn 4vn 55q 55q 55q 61r 61r 61r 63a 63a 63a 63a 6u3 6u3 6u3 6u3 6u3 6u3 77l 77l 77l 77l 77l 77l 7q5 7q9 7q9 7q9 7q9 7q9 7q9 808 808 808 808 80b 80b 80b 8pj
The strategy is simple: you rely on the creatures what the enemy plays. First you make a copy of something powerful, then either anti-matter the original or basilisk-blood it if you are short on quanta or AM cards. The name comes from the fact that you rely on parallel / twin universes, but you also switch the other side into negative, just like a mirror switches the sides. I needed the supernovas to power any ability the copied creates might have.
A slim minimalistic (dual color) version omits the special abilities:
Hover over cards for details, click for permalink
4vc 4vc 4vc 4vc 4vc 4vc 4vc 4vl 4vn 4vn 4vn 4vn 4vn 4vn 61o 61o 61r 61r 61r 63a 63a 63a 63a 808 808 808 808 80b 80b 80b 8pj
I am a newbie to the game, so my decks may not be optimal -- even though I did try to balance the quanta counts to be close to QI of 5.
Please, do not hesitate to make suggestions for improvements!
Note: I have a few upgraded cards in there, but not consistently, that is simply because that's how many I have at the moment. However, it should also work un-upgraded, especially the slim version (the fat one does not get too far with nova on the special abilities).