Sunburst

Sunburst causes a globe of searing radiance to explode silently from a point you select. All creatures in the globe are blinded and take 6d6 points of damage. A successful Reflex save negates the blindness and reduces the damage by half. An undead creature caught within the globe takes 1d6 points of damage per caster level (maximum 25d6), or half damage with a successful Reflex save.