Magic Weapon Abilities - Magebane
Weapons crafted with the magebane property are rightly feared by all arcane spellcasters. Against any creature with arcane spells currently prepared or spell slots available to cast arcane spells without preparation, or against creatures with the ability to use arcane spell-like abilities, a magebane weapon's effective enhancement level is 2 better than normal (so that a +1 longsword becomes a +3 longsword when wielded against arcane spellcasters) and deals an extra 2d6 points of damage. Magebane bows, crossbows, and slings bestow this ability upon their ammunition.
Aura: Moderate conjuration
Caster Level: 8th
Requirements: Craft Magic Arms and Armor, dispel magic
Price: +1 bonus