I'm not sure what the exact decks jippy tested. But on my tests with ak65, i used the following decks versus ak65's BH deck & graboid deck.
First one annihilated entropy's BH deck (the one that was used against jijo) even after ak65 played 6 black holes to heal himself and had a fog shield. It wasn't a hard 2-0. Fractal phoenix worked both times. I think the key is being overloaded with quantum pillars which managed to withstand against black holes and still executed the combo.
The deck is as follows:
4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4vj 4vj 4vj 52j 52j 52q 5c1 5f6 5f9 5f9 5fa 5og 5oo 5up 622 622 6qq 6qq 6qq 7ds 7ds 7ds
This one lost to BH deck by 2-0. The deck is working properly, with this deck i lost one of the times due to lack of quanta, and on the other one i simply didn't have firepower against it. One of the matches was very close and (i thought i won. Damn healing black hole), the other one not so much. Altough i prefer fractal, i'm convinced it is possible without it.
The deck is as follows:
4sa 4sa 4sa 4sa 4sa 4vd 4vi 4vj 4vj 4vj 52q 52q 55v 593 5c1 5f6 5f9 5fa 5fc 5og 5oi 5rk 5up 621 6qq 6qq 6qq 713 7ds 7ds
Both of the decks lost against graboid rush. Rainbow just don't have the speed for it.
My conclusion: I would rather use the fractal combo than not. But as ak65 suggested, not completely rely on it and still use growing creatures as well as disposing of expensive cards (thats what i attempted to do on the first deck). Besides, altough i didn't include them, it might be a good idea to use some cc.
@jippy, could you post the decks you tested and the results ?
@jijo, i think you need to test your deck ideas against one of us and tell the results.
@ak65, i think wings might be better against either BH deck or graboid deck than fog shield. Or you can just take both.
At the end of the day, ak65 is going to choose his deck and i trust his judgement.
Edit: I made a wrong copy paste on the first deck. Fixed.