Roleplayer by Benjamin Earl

When Benjamin Earl tells us that he's ready to publish his strongest card effect, we listen! In effect, a spectator freely names a card, they shuffle the deck multiple times and then find that card ... and its three mates. Best of all, it happens in their hands, and apparently without the performer touching the deck!

You can present 'Roleplayer' as a magic or gambling demonstration, It only requires basic skills and it is almost entirely self-working! However, more advanced approaches—to both effect and method—are also explained.