Largos or Tengu seems like the most obvious race that shoul be add.
But I was thinking about draconic race. And as for Lore, this race was originaly created by dragons to annihilate other living beings, but turn on their creators and help others to defeat them. As for their city, I imagine a mountain with snowy top volcanic underground encircled by area that si half marsh and half crystaline desert. It would be only place with friendly risen, destroyers and other corrupted creatures.
And as for their wing they would use them only in skills of to levitate while running with sheathed weapon.