Magic Weapon Abilities - Profane Burst
A profane burst weapon functions as a profane weapon that also explodes with negative energy upon striking a successful critical hit. (This effect occurs even if the target is normally immune to critical hits.) The negative energy burst also deals 1d4 points of Constitution damage to a living wielder. In addition to the extra damage from the profane ability (see above), a profane burst weapon deals an extra 1d10 points of damage to living creatures on a successful critical hit. If the weapon's critical multiplier is X3, add an extra 2d10 points of damage instead, and if the multiplier is x4, add an extra 3d10 points. (Double the bonus dice of damage against good outsiders.) Bows, crossbows, and slings so crafted bestow the negative energy upon their ammunition. Even if the profane ability is not active, the weapon still deals its extra damage on a successful critical hit.
Aura: Strong conjuration
Caster Level: 12th
Requirements: Craft Magic Arms and Armor, inflict critical wounds
Price: +2 bonus