User blog comment:Fullmetal Renkinjutsushi/Exactly how strong is the Demon Lord ?/@comment-32598341-20200201173021/@comment-10330822-20200204003223

Kind of depends on a couple of things.

Is the Demon God really "dead" dead? Probably not, since he's "special" to Akon Kagura.

Is there anyone else who can modify the level system? Probably, Satou already apparently can modify the magic operation system to make his spells more powerful, I'm sure with enough effort and geek code knowledge, he could figure it out and set his stats to max.

And last, does he even need to? He points out at 17-49 that between the girls who are level 100s and all his stored items of magic, he still has nearly limitless supplies of magic for which he can use Primeval Magic, which can allow him to fight gods. He also still has Menu, Unit Arrangement, and Indestructible. Likewise, if he finds a way to evolve into a god, he'll become something even stronger than he was before, and his level won't matter.