9th level Abjuration
Classes: Sorcerer, Wizard
Components: V
Casting Time: Standard
Range: 60 ft
Area: All magical effects and magic items within a 40-ft.-radius burst
Duration: Instantaneous
Saving Throw: WIS negates
Spell Resistance: No
Description: All magical effects and magic items within the radius of the spell, except for those that you carry or touch, are disjoined. That is, spells and spell-like effects are separated into their individual components (ending the effect as a dispel magic spell does), and each permanent magic item must make a successful WIS save or be turned into a normal item. An item in a creature's possession uses its possessor's WIS save bonus.
You also have a 1% chance per caster level of destroying an antimagic field. If the antimagic field survives the disjunction, no items within it are disjoined. Even artifacts are subject to disjunction, though there is only a 1% chance per caster level of actually affecting such powerful items. Additionally, if an artifact is destroyed, you must make a DC 25 WIS save or permanently lose all spellcasting abilities. (These abilities cannot be recovered by mortal magic, not even miracle or wish.)
Note: Destroying artifacts is a dangerous business, and it is 95% likely to attract the attention of some powerful being who has an interest in or connection with the device.