as the artist of my duo team, i had to redo a lot of the animated sprites because i'm not that experienced in animation :,)) i tried to wing most of them and learned that the best way to animate for me personally is to block everything out first before making everything pixel perfect :DD and that i should probably try out aseprite because i was animating sprites in clip studio paint x) aseprite has animation tools ive heard!!!! ^-^
I used Aseprite for our project! I did use CSP for quick concepts and sketches but the animation in Aseprite is so much better for pixel art, even if the interface is a little strange to get used to if you've always used the latter (I kept hitting the bracket keys to increase brush size but it kept changing colour!).