Cosack Pen
Etienne Pradier
No need to prepare the prediction, you will be able to do it on the spot!
EFFECT: Before or after a card is selected, the magician writes something on a card. All types of comedy byplay can occur, with the magician naming the wrong card, or showing that he has written in a different language, crazy lettering, etc. A simple flame from a lighter will cause gasps in your audience, as the crazy lettering disappears, and the name of the chosen card appears. This looks really magical!
Great visual effect using only one pen.