In this video tutorial, viewers learn how to perform the double undercut using a deck of cards. This shuffle controls the bottom card. The trick begins with the magician asking the spectator to choose a card. Return the card on top of the deck. Then it will be shuffle and end up at the bottom. To do this trick, create a break between the card and the deck. Now cut the deck in half. The right hand packet is placed under the left hand packet. The card is now transferred to the right hand. The left hand packet is the returned to the top. This video will benefit those viewers who are interested in magic and would like to learn this shuffle to use for other tricks.