#Also I'm sorry in my head there's a zero percent chance he becomes Archdevil Supreme

[sky-kiss]

So Tav/Durge probably wouldn’t be the ideal consort for Supreme Archdevil Raphael? Unless they had some divine lineage or cult/domain of their own?

It's fanfic, baaaaaabby. We do what we want!!! Are they ideal? Probably not. But they're also a freak who is far stronger than the average devil by the end of the game. And Durge is a bhaalspawn (I opt to ignore the "you can just suck out the essence of Bhaal and be cured :> ).

It's up to the author to build the character and their relationship to Raphael. That'll determine if it works or not.