Hungering Blade

0: +2 Blade of ancient design, annealed in the waters of the underworld, which craves the bloated souls of those who evade death.
0: Culling: Any strike against a target with fewer than 10HP will instantly kill the target, ignoring THP, resistances or effects reducing damage.
0: Hunger: Killing blows against targets marked by the blade increase its hunger and size, until it returns to its full power.