#or be Saint Latona who apparently managed to fight back the possession because she was that awesome

[randomnameless]

Fallen and Christmas Lyon's relationship with Fomortiis makes a lot more sense after i saw someone argue that those are versions of Lyon from after he died in Sacred Stones, meaning he now knows Fomortiis' weaknesses and can blackmail him into working with him by threatening to tell everyone else about them too

It doesn't really hurt Lyon's base game characterization if his Fallen and Christmas versions are basically just Sacred Stones AUs where he gets ressurected with his mind still intact after dying and, as such, knows Formootis' weaknesses much better than he did the first time and can blackmail him with said knowledge imo

meaning he now knows Fomortiis' weaknesses and can blackmail him into working with him by threatening to tell everyone else about them too

Anon,

FE8 makes it clear that everyone knows, from Natasha to Joshua, from L'Arachel to Rennac, that the Demon King fears the Sacred Stones who can seal him.

Hell, it's basically that continent's lore told in the opening roll.

What makes Fomortiis the Big Bad is his inablity to be killed, and his power to seduce, I mean, manipulate people around him, even if he's stuck in a rock.

Fomortiis' main power is to corrupt, not to throw giant fists around : as long as he is around, even as a rock, he can still wreck havoc and doom the world.

This is what happened with Lyon, and how he got a new host - despite everyone around telling him to not to mess with the shiny rock, because Fomortiis tempted and lured him.

"Seal him in a rock!" is as secret as the knowledge that you can prevent slugs from eating your salads if you throw salt at them in FE8, but FEH tried too hard to rewrite Lyon in a character he was not in FE8 (for marketing purposes? To make him look cooler than his original incarnation?) thus, it's basically a retcon.

"I know how to seal you!"

"Just like Duessel, and yet, you're still the moron who fell for my lies!"