Slate of Mind
If you like mindreading effects, and you like quick and startling tricks, this one is for you!
You show a slate with six numbers on it. Next to each number is a playing card clipped to the board. Let your spectator freely choose any of the six cards. Clip that card to the top of the board. When you turn the board around- the chosen card matches your prediction, and all of the other cards are different!
NO SKILL NEEDED! This is a very easy almost self-working gem of mental magic! All you need to be able to do is put cards in a slot! The gimmick does the rest of the work for you.