Bicycle - Invisible Deck - Red Back

The magician places a deck of cards in a sealed box on the table. The spectator can think of and name a card. The magician takes the deck, opens it in his hands, and demonstrates how a single card is turned over. This is clearly the card named by the spectator.
• An effect with a powerful impact on the audience, as the card can be freely chosen. The spectator can name any card in the deck.