BRAIN WAVED (Online Instructions) by Jean-Pierre Vallarino
How about presenting a miracle where a thought-of card, signed and removed from a normal deck, changes color? BRAIN WAVED:
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You are using a normal deck (examinable before, during and after the trick)
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It is shuffled
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A card is chosen freely (or simply thought of prior to its removal)
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This card is taken out of the deck and signed
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The spectator can change his mind
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No force
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No accomplice
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No change
 
At the end of the effect, you can leave the card as a souvenir with your phone number, for example. In the spectator’s mind, there is nothing. Nothing, nothing and nothing. Everything is clean. This is maybe the most magical: get such a result with all these conditions!
 
