It's Supernatural Season 1, Episode 16 - Shadow. Meg and her bloody bowl is back! Why are you hating on pit bulls Dean? Zorastrian daevas sometimes have backward knees. And please deep fry that heart on a stick and dip it in ranch.

Check out the symphonic metal band Aesma Daeva here https://youtu.be/KUQoTPnVbl0

Sources: 

• The Mythology of Supernatural Brown, Nathan Robert, 2011
• https://genies.fandom.com/wiki/Daeva
• metalmusicarchives.com/artist/aesma-daeva
• http://avesta.org/zfaq.html
• Encyclopedia of Demons in World Religions and Cultures Bane, Thersa 2012
• The Encyclopedia of Demons & Demonology Guiley, Rosemary Ellen
• https://study.com/academy/lesson/spiritus-mundi-definition-lesson-quiz.html