X Marks The Spot (With Cards)

As magicians, whether we've practiced for 10 months or 10 years, we've all "found" a spectator's card. We've all made a card flip upside down in a deck. We've all made a signed-card rise to the top of the deck. We've all done a triumph rutine. But that's where it stops. We have NOT all made a mixed deck correct itself while the ENTIRE DECK (every single back in the deck including the spectator's card) changes... Every card, all 52, in the entire deck changes in a flash of fire within a split second giving a moment of startling, visual, in your face magic. THIS is X-Marks The Spot...EffectYou, in a pseudo demonstration on how magicians use marked cards take your audience through a deck of red cards to see if they can find the marks themselves. Unfortunately, they are not able to see a thing, and believe at this point that you are pulling their leg. So, to prove they really are marked, a card is selected and signed on its face and lost in the deck. One half of the deck is turned face up