This is basically a japanese-style duel song, isn't it? XD Well, nice. I did already mention in the discord that I like it a lot but here goes again. The feel it gives off is really prepparing a person for battle. Very cool. It works like a charm~
I guess I do think it would benefit from a more "larger than life villain" feel. Maybe that could have easily been done with an ochestra accompaniment moving alongside the beats of the song. Maybe an ensemble of strings, with arco staccato's. (Make it imposing enough, and it will also give additional villain feels.) My two cents.