Hyper Transpo trick
"Stephane Lemelin's Hyper Transpo Trick EFFECT: A card is freely chosen from a red-backed deck. The card then changes places instantly with its duplicate from a cased blue-backed deck! An utterly impossible, totally mind-boggling transposition that fools both magicians and laymen alike! Both decks are handled so freely, it just doesn't seem possible! Easy to do and so very, very clever! This was one of the hits of Stephane's competition act at the 1998 Magic Montreal convention! Comes with an ingenious new gimmicked deck, carefully prepared by hand, and a photo-illustrated 12-page instruction booklet written by David Acer. Just throw in your own regular red or blue-backed Bicycle deck and you're all set to perform a close-up, walk-around miracle!"
Camirand Academy of Magic