And what exactly does it say?
idk something about Abigail actually fighting a demon king (and probably obviously losing) but you kept arguing >:v
"I'll show you the power of Abigail, who fought the Demon King!"
I said in my post that "the problem is, what demon king did abigail fought?" but thinking about it... it had to be either Mundus or Argosax and seeing as Abigail survived it most likely was Argosax as he, funnily enough, seemed the most merciful between the last 2 demon kings.
Mundus would have either killed him or forced him into servitude while Plutone would have forced him to yield and serve, only Argosax doesn't really give a flying **** whatever the other demons do apparently.
There are also statements of the legend of Abigail, having power rivalling even the demon king (most likely steaming from such fight).
The profile currently claims Abigail is on par with Mundus, I personally don't care given all the things I said above but if anything I would change it to Argosax and instead of equals it should be "comparable but weaker than X"
My headcanon is this. A long time after Sparda's betrayal and the new separation of the worlds Abigail was born. With great power beyond most demons and hubris without equal he challenged Argosax, lost and was left to wander the demon world, after that at some point during the renaissance and the reintroduction of Alchemy to europe, Allan took interest and used his knowledge to summon demons eventually coming across Abigail, seeing the immense power he couldn't control he sealed it with the whole ass ritual.
Abigail had to be sealed before Argosax was sealed, otherwise he would have taken control over the demon world in the absence of the big dogs.