Blinding beauty

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Blinding beauty was a transmutation spell that made the caster as beautiful as a nymph, allowing them to blind humanoids that gazed upon them.

Effect
The caster acquired a nymph's supernatural physical beauty for about forty-two seconds, or longer for more capable casters. Any humanoid within 60 feet (18 meters) who saw him or her directly risked being permanently blinded, similar to the blindness spell, if they could lack the fortitude to resist. However, the caster could quickly and easily suppress the blinding effect if he or she so desired, while staying just as beautiful.

Component
In addition to verbal and somatic components, the caster required to practice abstinence, by abstaining from sex for one week before casting.