Wydwen is a mysterious legendary faerie character from the Lorwyn expansion with the following flavor text:
In a world of bright, cloudless skies, she is the dark storm on the horizon.
Since she did not make an appearance in the Lorwyn books, little is known about her beyond the following description that appeared in a Magic Arcana on MTG.com:
Wydwen is much too cool for you. Faeries travel in small groups called cliques—and for Wydwen, it's literally a popularity contest. She comes and goes as she desires, leaving snorted insults in her wake, and doesn't give the time of day to anybody—creature or planeswalker—who she sees as beneath her.