Marked Decks are the easiest way to do magic tricks and fool people but real magicians never use marked decks. This magic trick is amazing as it uses a normal deck of cards to create this effect.
The chosen card is shuffled in the deck and then found by the magician however to find the deck, the color of the card itself is changed - from a blue backed card to a red! And that too after first finding the chosen card and it earlier had a blue back.