I'm pretty sure this is like pure fanfic stuff but I like the idea of it a lot. The idea that the reason Percy can control things like blood and poison is because while he was in Tartarus his domains evolved and expanded out of the ones his father gave him.
And basically its one of the reasons demigods are so powerful, because they can cross and seep into another God's domain (not easily of course) but they aren't restricted by being a god because they have mortal blood within them.
So that had me thinking a little bit. If Percy (and by extension other characters but it would be a little bit tricker to apply it to) falling into Tartarus where he is pushed to such extremes that the capabilities of his domains shift, then what the hell could he be capable of?
Not to mention possible blessings from the gods and Primordials. (Yeah this is lowkey apart of my Tartarus AU because I think I want to write that one first. Maybe I'll just switch and swap until I finish one lol).
Because I'm not gonna lie I could lowkey see Percy being offered blessings from multiple and I have a few ideas.
But just as a normal demigod what could he domains expand to? Would it be a stretch for fire to become apart of his domain due to the exposure and use of the phlegethon?
I've already thought about the basic things people usually do, pulling magma from the earth, ice manipulation, poison, blood, pulling water from thin air, etc etc.
But I want to do something different because I do want to incorporate "dark!percy" into it somehow.
But not like super op, edgy. dark Percy because realistically he wouldn't be like that. I just see him as more of "falling for you" type if you've ever read that.
So like if you have any ideas PLEASE comment I have none. I really just want to explore his powers out of the basics. (Maybe to can tap into different epithets from Poseidon and from other pantheons because syncretism??