Like I said long ago, it looks like the intent is the card that goes in the K-Touch will be touchable (probably in the show, the toy is probably just a card) prior to use. Possibly a Faiz/IXA-esque button combination on the card before entering it into the K-Touch.
Well, cards in Complete Form's armor is like how the Rouze cards are fused into Blade's King Form's armor except in a weird gimmicky way... I wonder how they'll work. Do the cards slide off for something?
I didn't think it makes much difference, but that looks soo much cooler. The head does look a bit too tall without the card filling it up, but the chest piece looks awesome in just plain black.