The balance is definitely too scuffed. Once a fight reaches a certain point, there is no real way to come back, but the game does not end. Your only option is to surrender. It does tie into the theme of being undead and decaying past the point of recovery, but without stronger visuals or a clearer cutoff, it does not leave a great impression on the player.
Thanks again for the feedback :3
I will be checking out your game for sure!