Flex is a sleek card flourish by Johnathan Warren that low-key has become one of the highlights of Cardistry-Con in Los Angeles.

Reminiscent of a Waterfall, this move was inspired by Dan and Dave Buck's thin spring, some of Birger Karlsson's fanning work and by Virtuoso SS16 back design. Taught by Alexander Melnik.

Deck used in this video: Off the Wall, Lucky Draw, Art & Machine, Antler, Tobacco Brown.

You can learn how to Flex on December Boys right now and free of charge.