Seraphim

A Seraphim is a legendary six winged creature said to have been created when The Holy Crusader was split in two to stop the destruction of the world. The existance of the Seraphim, of which there are only two, is heavily debated due to the only reports of Seraphim coming from their birth, during which most onlookers were obliterated.

Seraphim
"And as the light of day faded,

God said to the world, "This is not your end."

And cut his most perfect creation into two."

-Birth of The Saviours, a Catholic religious scripture

The Seraphim were created from the splitting of The Holy Crusader. They are known by most religious scripture as "The Hellion" and "The Divine Star", as their alleged respective dwelling places are The Kingdom of Hell and The Garden of Eden, though no proof of this exists other than the word of a man who claimed to have witnessed their birth. The little scripture involving them speaks very highly of them, even hailing them as the second coming of jesus (who has been there the whole time).

False Prophets
There have been a few creatures claiming to be one of the legendary Seraphim, however every single case of someone claiming this has resulted in the mysterious death of the false prophet. Autopsies have been done on the deceased, and nothing medically wrong is ever found. It's thought by the church, that this is the result of the Seraphim making sure that a second Nephilim War never happens.

Luci
At one point, Deimos Katzden journeys to find Lucifer Gurcifer's missing wings, which had been taken from him and scattered among the planet. He thought he'd found all but one, as he'd managed to restore three of his wings, however all three of the wings appeared on the same side of his body.