Faerie Energy = Demon Realm

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Faerie Energy = Demon Realm

Creatures in this realm:



Acheri
Croatoan Virus
Davea
Demons
Horsemen – War, Famine, Pestilence, and Death
Witches
Black-Eyed Demons
Crossroad Demons
White-Eyed Demons
Yellow-Eyed Demons
Knights of Hell
Cambions
Samhain
Hellhounds
Disaster Demon
Succubi

References:

http://www.listal.com/list/creatures-of-supernatural
http://supernatural.wikia.com/wiki/Supernatural_Wiki