Just imagine this: Take out a deck of cards with Blue backs. Spread them out to show that all of the cards are different. Now, let your spectator randomly select a card in the middle of the deck, without you seeing what that card is. With a snap, that card magically jumps to the top of the deck!
BUT WAIT! You spread the cards again- and the entire deck is now the same as the spectator’s card!
AND THAT'S NOT ALL! This trick is called KNOCKOUT for a reason! Turn the cards around and spread them again- all the cards now have RED backs! Wow!
Special thanks to our good friend, magician GREBO (Jim Oberg) for demonstrating this trick with us!
THIS VIDEO DEMO IS FROM THE MANUFACTURER:
As a variation of the routine, you can do as we did in the demo video. After bringing the chosen card to the top of the deck, the chosen card is the only one with a BLUE back- the rest of the cards have RED backs.