Story:
"Do me a favor"... or how to get the spectator to hold the deck in his own hands, while unbeknownst to him, a card is very slightly outjogged from the deck, allowing you to keep control of it when you retrieve the deck. This card will obviously be the one he has chosen, and put back in the center of the deck! A diabolical tip that is really useful, and that will allow you to completely baffle your fellow card magicians!  

Cast