Zauverlind

Zauverlind the Nightmare Mage is a powerful and evil mage, who takes his power from the Great Twi Prince of Broken Dreams. Though not in service of the exact goals of the Prince, whose goals and wants are not known by any but himself, he is able to use a similar power and influence the dreams of others.
Zauverlind is from the Tahara Margravate, and is one of the leaders of the Setting Sun. His greatest achievement is the Dream Drinker, a monster created using dark rituals that turns a mortal into part Twi-folk being that can drain the energy of a victim by literally drinking their dreams.