Utter Disintegration

This Weapon has a dark, insidious power deep within. Occasionally, this power lashes out violently at enemies and attempts to disintegrate them. This disintegrate is incredibly powerful and will utterly destroy weaker foes.
 * chance of 15d100 + 300 untyped damage: 757.5 + 300 average damage, 21.15 average per hit.
 * No saving throw to reduce damage