Magic Weapon Abilities - Impedance

An impedance weapon mimics the impeded magic planar trait. When the wielder strikes a creature that uses spells or spell-like abilities, that creature's ability to use its spells is impeded for 1d6 rounds. To cast an impeded spell or use an impeded spell-like ability, the creature must make a Spellcraft check, Intelligence check, or Charisma check, whatever is most beneficial to the creature) against a DC of 15 + the level of the spell. If the check fails, the spell does not function but is still lost as a prepared spell or a use of a spell-like ability. If the check succeeds, the spell functions normally.
Aura: Moderate abjuration
Caster Level: 11th
Requirements: Craft Magic Arms and Armor, antimagic field
Price: +3 bonus
Planar Handbook