A pattern of shifting colors weaves through the air, fascinating creatures within it. Roll 2d4 +1 per caster level to determine the total number of HD affected (maximum +10). Creatures with the fewest HD are affected first; and, among creatures with equal HD, those who are closest to the spell's point of origin are affected first. HD that are not sufficient to affect a creature are wasted. Affected creatures gaze at the lights, heedless of all else. Sightless creatures are not affected.
A wizard or sorcerer need not utter a sound to cast this spell, but a bard must sing, play music, or recite a rhyme as a verbal component.