Imagine Fran picked a skill to. Make unhealable wound, or something a random potion can deal with.... Considering what he plans to do and how gods deal with people that's going too far him dying on the gutter is kind of make sense
Either way it is lost on the sea... But is this even two ways? That "breath weapon" from Fenrir actually make his dragon knocked out at least and his ship is broken and on fire.... Who knows where his weapon is? It could be somewhere on the burning wreckage, it could have fallen off the ship...
Reminder that Succubus and Incubus....while strong actually hardly ever really shown more aptitude to physical, than your average human. Being reliant on seduction and confusion
Being magical genius, and transformed into succubus means bigger magic stat then physical so that Incubus is...