Flash causes a small object, no larger than a coin or pebble, to explode and emit a brief but dazzling burst of light when thrown to the ground. Any creature witnessing the flash must make a Reflex save or be temporarily blinded for 1d3 rounds. The caster is assumed to shield his eyes before invoking the flash and is not affected. Light sensitive creatures add +5 to the DC of their saves and suffer 1 additional round of blindness. Sightless creatures are not affected by flash.