Nice art and sounds. The theme feels like More is Less than Less is More (if that makes any sense). You don't allow the player to not pick something in case they want to focus on either build (maybe you intended this, but to me it didn't feel nice). I think I found 2 bugs 1. If you're fast enough you can pick multiple skills while training. 2. I couldn't use regenerate while in combat. And finally game balance felt kind of off since the only way I could win was by spamming fiery slash and not use a single defense skill. I think you can turn this into an interesting RPG though!