How can I create a "speed" effect as seen in CW's "The Flash"

Hey guys. I’m working on a fan project based on DC characters (just for fun, not to distribute or anything). I’ve never used Cascade before, and I was wondering if anybody had any tips on creating the trail effect shown in the screenshot.
https://img.cinemablend.com/cb/7/3/1/a/6/f/731a6fac0bcd40c45ab380bc38761b230611b798737e917e1e94fad822bc5cb6.jpg. I only want it to show up during certain animations. If somebody could show me an example material/particle setup or link me to a tutorial that would be great.

Thanks,
TrumpetPro

The closest thing I would think of is making a particle effect that you attach to your actor / pawn / character that you enable only when certain animations are played. Then its just a mater of making your particle effect look the part.

https://forums.unrealengine.com/development-discussion/blueprint-visual-scripting/1550-attaching-particle-to-actor