Hugh Miller & Divado - Impossible
A fantastic Card routine for all kinds of audience that will please and satisfy both seasoned magicians and those fairly new to the Art.
No sleight of hand needed
No gimmicks used
No manipulation
No preparation
Just take any deck of Cards, even a borrowed one, and you will immediately be ready to perform this great routine. The trick is presented in a three-part crescendo and it is designed to leave your audience in absolute awe, thinking "No way, this is... IMPOSSIBLE!"
EFFECT:

The magician takes 10 Cards from the deck, 5 red and 5 black, of the same value (let's say from the Ace to the 5 of Hearts and the same Cards of Clubs). A spectator is called to assist with the trick - he or she can thoroughly inspect the Cards, count them, etc. - these are genuinely normal Cards.

The spectator chooses one set of Cards for himself, the magician takes the other. Both sets are shuffled. The magician lays his five Cards on the table, face down, and the spectator deals his Cards face up on top of each one of the magician's Cards. The spectator deals his Card freely. The Cards are then collected in pairs and ... they are all correctly paired up. The spectator coupled them perfectly.

Since the spectator has been so good at it, the magician ups the ante and asks him to take all the black Cards, shuffle them, then deal them in a row on the table, face down, so that no one, including himself or the magician, knows which Card is which. Then the spectator does the same with the red Cards, dealing them on top of the black ones. Five pairs are formed, and the magician proceeds to look at every pair to see the result. He collects the Cards in pairs from left to right and ... again the spectator paired the black and red Cards perfectly.

Now, for the ultimate test of the spectator's ability, the magician gives all 10 Cards to the spectator to inspect and make sure they haven't been tampered with. The spectator this time shuffles all the Cards together, black and red, then deals them face down, scattered on the table. The magician asks the spectator to create five pairs, putting one Card on top of another at his free will. The spectator is even offered a chance to swap Cards if he wants to! When the procedure is over, the pairs are lined up and then inspected by the magician, which looks at the spectator in wonder: he did it again. All Cards are perfectly paired up together. He really achieved... the IMPOSSIBLE.