kunzis weapons.

With the reuniting of her king Kunzi's weapons are beyond any mortal beings they are ancient Promethean swords that can cut through and substance like butter and with eh souls of the sinners in them their power grows ten fold.

Tenfold is a big word. How about their powers double. And they can only cut through any normal substance. In this world, there is more then meets the eye. Some characters can make their skin harder then diamond itself. And some can harden other substances so that they can cut through ANYTHING. hard to believe right?

Approved. BUT. Your blades can only cut through any normal substance.