– Spell – D&D Tools (mobile)

(Spell Compendium, p. 163)

Transmutation
Level: Bard 4,
Components: V, S,
Casting Time: 1 round
Range: Touch
Target: One creature with Intelligence 3 or higher
Duration: 1 minute/level (D)
Saving Throw: Will negates (harmless)
Spell Resistance: Yes (harmless)

Also appears in

Complete Adventurer
Song and Silence: A Guidebook to Bards and Rogues