This seems like the kernel of an interesting combat system. But it could really need some more tutorializing. For example, I didn't really understand what "Aura" actually means. I still managed to beat the game by spamming "fire punch" which the game apparently let me do whenever I wanted. Contrary to regular attacks, which somehow seemed to become unavailable after I used "fire punch" a couple times.
I think you might be on to something cool here. But it doesn't seem to be there yet.