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The Devilish Deck Routine
You have a prediction in an envelope in full view at all times. You ask the spectator to choose any number between 1 and 52 and whatever the spectator chooses you count down to that card and put the card to one side. You take out your prediction from the envelope and show the spectator. You then turn over their chosen card and it matches yours. This is instantly re-set so you can move on and perform this at your next table immediately.
Plus these other effects!
Always A Match
You deal the cards one by one onto the table and ask the spectator to say stop. Wherever they stop, the card matches the prediction in the envelope
Twice Foreseen by Paul Gordon
You have two decks in play. One red and one blue. You perform this as the Devilish Deck routine, but the red deck card will designate the suit and the blue deck card will designate the number. When you turn over the prediction in the envelope it matches the card created by combining the choices of the two spectators.
Easy to do
Any number chosen
Clever principle to create some astonishing magic.