Sympathetic Vibration

Song and Silence: A Guidebook to Bards and Rogues (SaS)Updated Supplementals (3.0)

Sympathetic Vibration is a D&D 3.5 spell (Evocation) from SaS. On class lists for Bard (Level 6), Bard Variant (Level 6), Divine Bard (Level 6), and others. Range or area: Touch; Saving throw: Will negates (see text); Duration: Up to 1 round/level; Casting time: 10 minutes.

School
Evocation
Casting Time
10 minutes
Components
V, S, M
Range
Touch
Target
One freestanding structure
Duration
Up to 1 round/level
Saving Throw
Will negates (see text)
Spell Resistance
Yes

By attuning yourself to a freestanding structure such as a building, bridge, or dam, you can create a damaging vibration within it.
Once it begins, the vibration deals 2d10 points of damage per round to the target structure.
You can choose at the time of casting to limit the duration of the spell; otherwise it lasts for 1 round/level, if cast upon a target that is not freestanding, such as a hillside, the surrounding stone dissipates the effect and no damage occurs.
Sympathetic vibration cannot affect living creatures.
A structure gets no saving throw, but a construct gets a Will save to resist the effects.
Material Component: A tuning fork.