The idea of a game where you are so powerful you are your own enemy is really cool, especially when you need to use different spells not just for the sake of damage output, but because different spells risk damaging yourself in different ways. You executed it really well too!
My only issues are
1. the laser spell instakills the heart for whatever reason even if you fire away from it
2. there seems to be no way to reliable stop projectile enemies from doing damage
Really fun game!