I came up with an effect that has two variations, either with a single climax or two climaxes. I'm not sure if two climaxes would be over doing it. The trick would be done with two spectators or an audience divided. The effect goes as follows: A card is chosen from a shuffled deck. One spectator (or one half of the audience) sees the entire face of the card. The card is then shown to the second spectator (or other half of the audience) and is placed face down on the table. When the first spectator is asked what card he saw, the response is "the 4 of hearts". The second spectator is asked the same question, but they respond "the ace of spades". The card in question is turned face up, only to have a BLANK face. Now that is version one. Version two is the same, except not only is the card blank but the ENTIRE deck is shown to be blank and can be examined. Which version do you think would go over better?