No clue is a super effect! When I was working in the magic shop I always used this effect to destroy even the most prepared magicians! I will teach you two methods to perform this miracle! This is the trick when you find a difficult spectator asking for impossible conditions! You can also use it as a mentalism effect, it is very versatile! You can also use a borrowed deck, no problem! No gimmicks, the deck is normal! No forcing and no peeks! Easy to do !
No Gimmick
No Force