This game was super fun and has tons of replay value!
My only critiques are that you may go up against the same opponents back to back or multiple times. I also managed to get KO'd in 1-3 turns a few times, so maybe there's some balance work to be done? Or I might just suck (the trash meta will work one day!)
Anyway, keep up the good work. I hope this concept gets expanded on in the future.