It's hard to believe so much magic could happen with virtually no moves: From red and blue backed packets two cards simply imagined by two spectators cleanly change places. Just like that.
As an inexplicable climax, the spectators thought-of cards proves to be the only cards that make the trick work – all the other cards in both packs are jokers. Best of all this spectacular effect is squeaky clean, no extra cards, virtually no sleight of hand and no suspicious or awkward handling.
Highly acclaimed as being the best trick of its type.