[[I never really posted about my omen!noct, I mean, I just call him omen because it’s better then any other form of it. This is just my excuse for a really fucked version of noctis, and I’m just gonna copy and post what I wrote to my friends-]]
I call him Omen!Noct but it's not, it's more just something to call him really-
Omen!Noct being made because a normal day creature was infected with what I like to call, daemonic plague, and managed to get a swing in on Noct despite his best efforts to avoid it. The hit of course infected Noct, which put him through a crazy fever; heating up, trouble breathing (usually fast and short breathes), nocted out the whole time since he was basically fighting a god damn illness.
Eventually, with some time, they managed to help noct out, they didn't know what kind of horror that was unlocked. The daemonic plague is more parasitic than anything, the parasite creates this darker version of Noct that is uses when it controls the prince. It's quite the little pest, and when attempting to remove it, it'll wiggle around under noct's skin to be seen and it's really gross but I love it.
Either way, it takes noct's knowledge of stuff and people, and uses it against them, making who fell shitty; that is if he goes a more mental torture route. The daemon parasite likes to physically torture people as well, in a very v e r y slow process. He'll torture someone for hours and hours if he can keep them awake long enough. Using bother mental and physical torture at the same time though, could probably fuck someone up-