From the creator of Witchcraft, Arnel Renegado. A spectator selects a card (for example, the 7 of diamonds) and it is lost in the pack. You then show a card that does not match their selection.
Ask your spectator to put some ash onto the card. Suddenly, with your hand waving over the top, the ash forms into their chosen card. Then, it just as quickly, it vanishes. Easy to do. No threads or loops, no elastic bands. This is Digital Witchcraft.