Who is he?
Could he be some sort of incarnate?(Ebonarm)
Is he Cyrus...Him being the Hoon DIng and everything.

The shapes in the Moth Dust reveal that the Hoon Ding's spirit is courting the Grey Maybe again, but the one you name is not he. It's just as well. That one was always a troublesome spirit, and not taken to manners or a courtly form. His sword play was second to none, whereas "The Ebony Warrior" was bested by a lowly snake man. Or is that sacrilege to you people and your strange beliefs? Go ahead and worship your deformed vamipirc soul svcker as if he's the Dragonborn if that comforts you. There's only ever been one Mother of Dragons. The rest are as children play-acting as their parents without understanding what responsibility is. Be glad that the Mother is forgiving, for I am not.