FEUER FREI!
No seriously, Aemon has two levels on him a lot more options, being a Wizard, but he is more crafter than fighter.
He will almost certainly have some form of protection from Fire and it either works and he wins, or it doesn't and he's toast.
Betting on Aemon for now, since Protection from Fire should be easily available.
Funny enough if he where level 10 as he originally was he would be immune to Fireballs from a special item, but due to his nerf he doesn't have it now.
There are people and fishes who know both of these sheets better than me to predict the outcome.
But definitly getting into some melee-magical fun.
Yeah, likely ends with a hammer to Moonsongs face.
Maybe Ceria fails a vital save, but I doubt it.
Either he melts her face off quickly or he goes down shortly after the failed attempt.
No guess here, really luck-dependant.