Cloning

Your participant chooses a card from a red-backed deck. After the card is returned, the magician spreads the cards on the table, the selection has vanished.

You then remove a phone case or wallet from your pocket. Inside is the missing card, but now its back is blue instead of red...

The magician places the blue-backed card on top of the deck. Instantly, every card in the deck changes to match the chosen card, both in face and back color.

To finish, the magician removes the chosen card, and the deck returns to its original state with all cards back to normal.

This routine is easy to perform and hits hard with so many visual changes in such a short space of time. Oh, and the deck does all the work for you!