This is my personal styling on the one card twirl, derived originally from Flicker by The Virts. I learned this when they posted their free tutorial of Flicker on YouTube a few years ago, which I highly recommend learning before downloading this tutorial.
I don't teach the base 'Flicker' move, as it isn't my own creation, but I do teach my variation on the move. It's one of favorite moves to do, and with enough practice, looks downright awesome.
Special thanks to Albert Chang and Omar Renfro for their help with filming. Their channels, respectively:
This is my one card twirl. Enjoy!