Those born under the sign of the Atronach can make pure magicka surge out of their nostrils for an hour once per day. You cannot use the nostril-magicka for anything.

Joke and fake loading screens and screenshots from The Elder Scrolls IV: Oblivion, run by @ChrisOfTheDead.
General links and the actual Oblivion mod made from these jokes in my Carrd page:
Those born under the sign of the Atronach can make pure magicka surge out of their nostrils for an hour once per day. You cannot use the nostril-magicka for anything.