Distort Speech

(Magic of Faerun, DnD 3.0)

Transmutation

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

You distort a creature's vocalizations.
The voice of the affected target becomes warped and incomprehensible.
The subject loses the ability to cast spells with verbal components for the duration of the spell.