In this routine a lot of magic happens in the magician's hands with a logical and tremendous ending.
You show five cards completely blank on both sides. A card is selected from a regular deck (say the 5D). The same card appears on every face of the blank cards. Then all the cards are blank again including the spectator's selection, which reappears face up in the middle of the deck!
Complete with special cards and illustrated routine (use any deck).