Shadows Fade

Initiate/unbinding shade
Level/School: 4/abjuration
Range: medium (100 ft. + 10 ft./level)
Target or Area: one spellcaster, creature, or object; or 20-ft.-radius burst
Duration: instantaneous
Saving Throw: none
Spell Resistance: no

You reach into shadow and draw forth a reflection of active magic, merging it with that magic and causing them to cancel each other.

This mystery functions like the spell dispel magic.