Dazzling Illusion
(Complete Mage, page 41, DnD 3.5)
[General]
Casting illusions causes the air about you to be filled with flashing colors that dazzle your foes.
Prerequisite
Spell Focus (illusion) or illusionist level 1st
Benefit
When you cast an illusion spell, you can choose to render all enemies within 30 feet dazzled for 1 round. Blind creatures are immune to this effect.
Special
An illusionist can select this feat as a wizard bonus feat.