Enchantment (Compulsion) [Mind-Affecting ]
The ray temporarily reduces the subject's Intelligence with an enhancement penalty of -1d4, with an additional -1 per two caster levels, to a maximum additional penalty of -5.
Range: Close (25 ft. + 5 ft./2 levels)
Sor 2, Wiz 2
From: Dragon An5
Spell Compendium