Well he and Balbanes fought on opposite sides of the war before. But they were more adversaries than enemies. I would picture him as always honorable, like Rubicant in FFIV; healing his foes first then kicking their tails.
That would be cool of course, but overpowered for regular combat. Imagine a party of Lucavi though!![]()
You could stage Western-style gunfights then.
I would actually use their default professions, which I totally ignore right now. At least Rafa's Brave is natually low enough to make her a useful Mediator/Treasure hunter.