This is a beautifully motivated opening effect for a card manipulation act. A deck of cards is introduced. The cards are taken out of the case. The cards and the case magically switch places several times. Besides the clever gimmick it is really a lesson in how to motivate the various effects in the performance. Wonder demonstrates how this effect of a deck of cards switching place with its case can be turned into a wonderfully motivated episode rather than an unmotivated series of effects. Wonder finds a good reason for every sequence that turns a simple trick into a story and thus beautiful magic.
Even if you are not interested in this particular trick, or card manipulation in general, Tommy Wonder teaches a lesson every magician needs to learn.