Why is Diend Summoning Rider 1?
That's pretty tolerable. I would have much prefered this over the cards, which are quiet the eyesore.
It'd be a plothole though. We saw in the beginning of the second Agito World episode that Diend's bots just fade out if they're damaged but not destroyed completely, but the Rider War Riders continued lying on the ground even after taking damage.
Oh, and we all know Kamen Riders never have plotholes -.-__-.-