It's King from "The Owl House"! That simply HAS to be a reference to that character. I noticed the little guy at 0:04. Was that supposed to be her daughter? I mean, they both have long ears. Well, they are drawn differently.
Is King based on some mythical creature that this being is also based on? This is so well animated. I do wish it was longer. It was kind of dull. Those knives aren't, though!