No! You assume that “idea” with 9 cube slots is “amazing”. No is not. Beside providing “Power Creeps” ( a lot I might add ), it will just break the game play.
As a matter of fact, I made a post in October last year, with the exact same idea which we will have in S20. I am not saying they took the idea from me, but … at least mine was a lot better then yours.
…and stop acting like you tested with 9 slots. No you did not. That’s some pathetic “facts”…