Every construct can be deconstructed with the right magic.

BREAKABLE CONSTRUCT

School transmutation; Level sorcerer/wizard 5

Casting Time 1 standard action

Components V, S, M (a vial of acid worth 50 gp)

Range close (25 ft. + 5 ft./2 levels)

Target one construct

Duration 1 round/level

Saving Throw Will negates; Spell Resistance no

This spell reduces the target's DR/adamantine by 5 or its hardness by 5. If the target does not have DR/adamantine or hardness, this spell has no effect.

Breakable construct counters and dispels unbreakable construct.