Pokemon + 3DS

Thanks to that card thing (i guess it is called AR) anything can happen!

AR battle Arena.

Place AR card down have battle displayed in real life or have possible VS match against others with a card, E.G. place down 2 AR cards and with two 3DS have the camera display the battle including effecting the area. You could even have a possible real time pokemon match using the cards, the touchscreen for the attacks, and the other button for movement, restricted to w.e the AR decide as an arena (such as mountains, water, etc).

If I ever see this my mind will be blown!