The number 40 means death in Biblical numerology—It actually means a period of trial, chastisement, or probation
Every culture in the world has shapeshifter lore, but none of these shapeshifters can fly—What if they shapeshifted into a bird? Because there are definitely legends about people who can turn into animals, specifically skinwalkers, which were mentioned earlier in the episode as an example of a kind of shapeshifter
Tarot cards date from the early Christian era when priests were still using magic—Tarot cards date from the 1400s and were brought to Europe from the middle east through trade with the Mameluk Turks (incidentally, the original purpose of tarot cards was not divination, they were just a different type of playing cards)
A scarecrow that kills a man and a woman every year in the second week of April is actually an effigy of one the Vanir (which Dean mispronounced) from Norse Mythology, the killings are part of a fertility rite involving human sacrifice, and the Vanir can be killed by burning it’s sacred tree—Where do they get this shit from? Yes, the Vanir are fertility deities, but they did not possess scarecrows and they were not linked to sacred trees. They all had names, personalities, etc, meaning that no one would worship “a Vanir,” they would worship a specific Vanir, like Freya or Njord. Whether or not people were sacrificed to them is unclear, but it is NOT part of any of the written mythology. Human sacrifice did exist in Northern Europe, but it did NOT involve the ritual killing of a man and a woman once a year. The human sacrificial victims that have been found were staked down in bogs, usually after being killed by some combination of strangling, stabbing, or bludgeoning. They were killed in times of war, famine, etc. and there is very good evidence that they were willing sacrifices. Also, no one knows which gods they were sacrificed to because there were no written records. Basically, there would NEVER be a book where the section about Vanir had a picture of a scarecrow and a description of human sacrifice like the one Dean found.
Almost every world culture has legends about “reapers”—What? How are they defining reapers? Because in the show it was a creepy old man in a suit who could heal someone by killing someone else. Or just kill someone for the hell of it. This definitely does not appear in every world culture, nor does the more traditional reaper with a long black robe and scythe. I wouldn’t say that most world cultures even have spirits of death or a personification of death that could be called a “reaper.” If they just mean spirits that kill people, I think that’s a ridiculously broad category that encompasses way too many different kinds of spirits for them all to be based on specific supernatural phenomenon that can be controlled with a symbol from a tarot card and a spell in Latin.
A banshee is a vengeful spirit tied to a family—NO! Banshees are spirits tied to a specific family (clan) that scream when a member of that family is about to die. They are harbingers of death, but they do not cause the death. Really it’s more like a sign of grief or respect. But banshee lore is more complicated than that. A banshee appeared to Brian Boru (the last high king of
Spring-heeled Jack is an example of a supernatural entity responsible for unexplained disappearances—The legends of Spring-heeled Jack are not associated with disappearances. He attacked people, but he didn’t snatch them or kidnap them or whatever they’re suggesting
The daevas of Zoroastrianism are brutal, animalistic demons incapable of speech or higher thought—The daevas could speak, and often were extremely intelligent and cunning
