I think he is more of a self-taught dark sorcerer similar to the Evil Queen and Cora, only male.
Or he got his powers from making deal with his friends on the other side, hence, perhaps, his desire to be rid of them but keep his powers.
Adam and Eddy did mention that if they were to explore Dark One, Savior or Author mythology in Enchanted Forest 2 , it wouldn’t be the same as the previous Enchanted Forest 1. The Dark One magic in EF1 originated from Nimue’s corruption of the Holy Grail’s magic, so if EF2 does have its own Dark One, then the origin would be completely different. So if Facilier is EF2’s Dark One, maybe he got his Dark One powers from “the other side” instead of a dagger.
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