Four Jacks Card Trick
Place one of the "Jacks" on the bottom, the next one in the middle, and one near the top. By now the audience will think that 3 of the 4 Jacks are somewhere in the deck, when in reality the 4 Jacks still have yet to come.
Show the "last Jack" (really the first) to the audience, as proof. Then say Abracadabra!, or tap the deck, or something of the equivalent. Magically, the 4 Jacks will rise to the top of the deck.
(Note: the voice in the video was generated using a text to speech program. It isn't my real voice :))