Crumble

School: transmutation
Circle: ancient 6th
Spell Components: V, S
Action Time: 1 action
Range: medium
Shape: broadcast
Targeting: hostiles only
Base Duration: instant
Saving Throw: fortitude half
Spell Resistance: no
Ritual Components: n/a

Causes the construct or target's metal equipment anywhere but the held slot to twist and harmonically tighten, dealing 1d6 sonic damage/level.