In this routine, you start by presenting a large envelope that contains a single jumbo card. You have an audience member select a card, which you've secretly forced to be the Queen of Hearts. Upon revealing their choice, you show that the card inside the envelope matches perfectly - it's also the Queen of Hearts.
You then return the card to the envelope, making sure to flip the envelope over without the audience noticing. You announce that you'll repeat the trick, and you confidently state that they will again choose the Queen of Hearts. This time, however, you secretly force the Two of Clubs. When they reveal their choice as the Two of Clubs, you act surprised but then quickly regain composure. With a snap of your fingers, you reach into the envelope and triumphantly pull out the Two of Clubs, showing that the magic works no matter what.
