Sombra and the Iron Throne

So now I'm just crazy about Song of Ice and Fire. So I just HAD to do this
Sombra is one who would feel in Westeros better than in Equestria, isn't he?
I plan to do Celestia, Luna, Chrysalis and Discord on the Iron Throne as well, hope I will be able  to
I'm just so tired I can't see the mistakes, sorry if there are plenty