A successful trial attorney testifies to the power of closing statements. In his short article about dos and don'ts, Mark B. Wilson (not to be confused with magician Mark Wilson) mentions the use of magic imagery.
In one case, my office created an animation for closing argument showing the hands of a magician moving shells around a table. One hand uncovered a shell to reveal the word "Covenant," representing the plaintiff's contention my client agreed to a covenant not to compete in a business agreement. Then, the hands move the shells around and uncover the same shell to reveal the words "No Covenant," representing plaintiff's statement on a tax return that my client did not agree to a covenant not to compete. The shell game was powerful.
I can imagine that it was. It sounds simple and memorable, and therefore, powerful. Effective legal magic.