Interminable Echo

(Complete Mage, DnD 3.5)

Illusion (Phantasm) [Mind-Affecting], [Sonic]

Level: ; Bard 4
Components: V, S
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One creature
Duration: 5 rounds
Saving Throw: Will partial
Spell Resistance: Yes

The deep tolling of a bell echoes within the mind of your foe.
You fill the target's mind with a barrage of illusory sound.
The subject takes a -10 penalty on Listen checks and 2d6 points of sonic damage each round.
A successful Will save reduces the duration to 1 round.