Beastmaster Xellas Metallium

I'm probably going to sound silly for saying this but i have noticed that many of these anime characters crossover into several different series under different names. Xellas looks to me a lot like Pallas in Saint Seiya, the way she sits, the ornaments she wears, the one image of her in the show was enough to know who it was. I think these could potentially be real entities that are somehow making themselves known in cartoons in particular anime.