Price (Item Level): 28,305 gp (16th)
Body Slot: — (held)
Caster Level: 9th
Aura: Moderate; (DC 19) divination
Activation: Free (mental)
Weight: 9 lb.
Three times per day, the wielder of this +3 longspear may ignore the natural armor (including any enhancement bonuses) of a target he attacks with the weapon. The wielder decides to use this ability as a free action before the attack roll is made. Armor bonuses and all other bonuses to AC still apply normally.
Prerequisites: Craft Magic Arms and Armor, find the gap.
Cost to Create: 14,305 gp, 1,120 XP, 29 days.
Source: Draconomicon, page 119.