This, in my opinion, is a guaranteed magical laugh, if you're ever after one. It's something that I keep 'nearby', alongside of card effects which take more time, and effort. The premise is soundly absurd, and, that normal deck your spectators saw you shuffle, suddenly turns to all jokers. Very simple mechanically, but again, absurd and memorable. Deck needs occasional maintainence, but that's easy too. If you are looking for a quick, ridiculous piece of entertainment, done anytime, get this. There is I believe, a more involved version that Aldo Colombini worked out with Seabrook, but this is the basic effect as I've known it, and have performed much to the great amusement and mystification of others.