Youtube Video - Wizard uses the "circle game" to prank a crowd

This was a ~15-second video I came across in a Youtube meme playlist (similar to the Important Videos playlist) in either 2016 or 2017.

A guy dressed as a wizard at some kind of convention has a crowd of people around him, and asks if they "are ready to see some magic". He takes his wizard hat off and puts his hand inside, and acts like he's about to pull something out of it -- but when he pulls out his hand, he's making the circle from the old "circle game," and the entire crowd starts groaning.

It was one of the smoothest, most well-executed pranks I've ever seen, and since the summer of 2017 at the latest, I haven't been able to find so much as a trace of it.