The magician keeps a prediction card in his pocket that should match a card chosen randomly from a different deck. <br /> <br />It appears to be correct, until the chosen card decides to change. <br /> <br />The magician then has to change his prediction card to suit the new selection. <br /> <br />For this and other affordable, easy-to-do, impressive Magic Tricks, visit: <br /> <br />http://stores.ebay.com.au/CRAFT-MAGIC-AND-SURPRISES