Transfusion Confusion was an transposition effect in Magic of Paul Harris (1976) in which an unknown card is openly placed inside of an empty card case and set aside. Another card is selected, signed, and torn into quarters. The torn pieces are cut into the center of the deck. After a magical pass with the card case, the pack is spread to reveal one face-down card which is shown to be the signed card completely restored. The card in the case is opened to show that it has fallen apart into 4 pieces.
It was not included in the Art of Astonishment compilation.