How to create such a video?

Question

Video processing

Hello! Please tell me how such videos are created:
https://www.youtube.com/watch?v=RyDVBiE2rRI
Interested in cartoon flashes of thunder of fire and so on, where they come from or downloaded, maybe even created themselves. I don’t even know where to start, where to look for information on such editing and animations, by what means this is all done.
I can install the programs I need, just tell me how to start.
Thanks a lot

Answer 1

Done in the same Adobe After Effects.
Animation is drawn by hand frame by frame.

Answer 2

Try Google buy video footage or download video footage or footage stock.