SUB-CHANGE by Patricio Terán and JT Magic (Blue)SUB CHANGE is a novelty and highly visual effect. The magician steps on a Joker card, and then asks the spectator to select a card. In an instant, the Joker under the magician's foot visually transforms into the spectator's chosen card. You can even perform a version where the spectator's card and the Joker under your foot switch places! Advantages: Unique & Eye Catching A card change underfoot is rare and always amazes audiences. Highly Visual, Yet