The magician presents a deck with white cards
on both sides and explains that he can print the cards he wants only with his mental power.
He cuts the deck and a card face appears. He then returns the deck: a back has also printed.
Then, he rapidly let the cards down in cascade (one by one) in his hand to prove that all the cards are now printed!!
After that, he takes the first card on the deck and rub the back on his sleeve. The back has vanished!!!
When he put this card on the deck… the rest of the cards also becomes white. You’re yet ready to perform the trick again.
Easy to perform.