I suggest breaking the habit of replacing "you" with "u". It comes across as very unprofessional and immediately gave me the sense that this isn't a very serious project.
This was reinforced when after the first battle I was offered "Explosion" for all 3 choices and after my second battle I was offered "Ice" for all 3. That was enough for me to decide to close the game.
There's certainly some promise here, so please continue to learn and improve. 👍👍