As just released:
Mordenkainen’s Disjunction (Level: Sor/Wiz 9) A powerful force disrupts magical effects on the target, removing ongoing spells that have been cast on a target. You must make a caster level check of 1d20 + your caster level (no maximum) versus 11 + the spell's caster level to remove a spell effect, and your target must make a Will save for each equipped item or all magical properties on them are temporarily disabled.
Yet another reason to have a decent WIS or somehow fit in the Force of Personality feat.