abjuration 

Traditions arcane, divine, occult, primal

Cast [>>] somatic, verbal

Range 120 feet; Targets 1 spell effect or unattended magic item

You unravel the magic behind a spell or effect. Attempt a counteract check against the target (page 458). If you succeed against a spell effect, you counteract it. If you succeed against a magic item, the item becomes a mundane item of its type for 10 minutes. This doesn't change the item's non-magical properties.

If the target is an artifact or similar item, you automatically fail.

Core Rulebook, page 330.