Random Magic Weapons (any level)

A lawful weapon is lawfully aligned and infused with the power of law. It deals +2d6 points of bonus lawful damage against all of chaotic alignment. It bestows one negative level on any chaotic creature attempting to wield it. The negative level remains as long as the weapon is in hand and disappears when the weapon is no longer wielded. This negative level never results in actual level loss, but it cannot be overcome in any way (including restoration spells) while the weapon is wielded. Bows, crossbows, and slings so enchanted bestow the lawful power upon their ammunition.
Aura: Moderate evocation (lawful)
Caster Level: 7th
Requirements: Craft Magic Arms and Armor, order's wrath, creator must be lawful
Price: +2 bonus
Source: Dungeon Master's Guide v.3.5