Tear a corner from a 3 of Clubs (From your Svengali Cards) and place the rest of the card under the flap of your card case. Secretly keep the torn corner in your hand.
To perform, use the Svengali Magic Cards to ‘force’ the a 3 of Clubs and have it torn into eight pieces. Ask the spectator to keep one of the pieces. Really you actually give the spectator the piece of the first card you tore off earlier.
Now place the pieces into the left side of the card case, spreading them around so they lay as flat as possible and close the box (secretly turning it over).
Tell the spectator you have put the card together again. Open the card box and hand the card with the one torn corner to the spectator. Your audience will be amazed to find the corner in matches the restored card perfectly!