I would've given it a 10 but....
The end battle was very obvious for what would kill the king. It should've been sumthing like, "Warrior" was kneeling on the ground trying to catch his breath and then the king comes and tries to do a horizontal slice through his head and then "Warrior" grabs his sword and jabbed it right behind himself making the king die with a painful death of blood loss from his stomach. And then have some cool effects and stuff.