The Ultimate Magic Square (That's Magic version) by Chris Wasshuber - Trick

A spectator is asked to throw three fair dice (this is an absolute fair throw, or even just a mental throw - no force here). From the number fairly thrown you construct a perfect magic square. For a kicker the cards are put together and a message appears written on the cards: "That's Magic!".

You get 16 specially printed cards (each card is 6cm x 9cm). A four page description with a detailed explanation and performance ideas.