-33%
The audience picks out one card randomly, and then the magician puts it into the cards
and puts the cards in a messy order. Blow to cards and then say: change.
Suddenly, the whole card becomes the same one, which is the card chosen by the audience. Or let the audience have a look at the cards, there are all kinds of points.
At this time, the magician says: change. Then all the cards become the same.
Demo:
