Actually, you are wrong about trading Diancie, AZ Floette, and the rest of the unreleased. No matter how you clone them (and you can clone them via Bank or your method), Nintendo's servers block them so they cannot be traded over Wi-Fi. I should know since I have all of the since removed Powersaves items.
The only way that they can be distributed via the Internet is by swapping ROM saves using the two available flash carts that can play the games.