Macabre ornamentation and stretched bits of leather make this weapon look as though it were made from a shriveled limb.
When you score a critical hit with a weakening weapon, the target takes a –4 penalty to its Strength score (to a minimum score of 1) for 10 minutes. Multiple strikes aren’t cumulative.
Projectile weapons bestow this property upon their ammunition.
Prerequisites: Craft Magic Arms and Armor, ray of enfeeblement.
Cost to Create: Varies.
Source: Magic Item Compendium, page 46.