Animators often practice animating action sequences by creating a hand-drawn version of a live action movie scene, the more dynamic motion in the scene the better.
So when Arifumi Imai, the talented animator who has worked on One Punch Man, Naruto: Shippuden and Attack On Titan, wanted some action animation practice he chose the Obi-Wan vs. Darth Maul lightsaber fight from The Phantom Menace as his inspiration.
一回描いてみたかっただけ･･･。 pic.twitter.com/WwhlRGuZfL
— 今井有文 (@ariariariari_) February 17, 2018
The scene is kept simple and rough, since it's just an exercise, but you can imagine how amazing it would look as a polished scene in an anime series.
-Via GeekTyrant