I was thinking that because by water and powerful magic.
Mostly because I would hate if they keep powerful sorceresses out of their butt. I mean if it were so, Snow and Charming could have used her help. It's like they hid powerful Sorceresses in a cave or something.
However, he seems powerless and Nyx is seemingly like above Genie powers.
FrancisPaul wrote: I'm guessing his mother will be the way the SB gang will travel to the Underworld. They didn't mention her for nothing
If they travel to to the Underworld. (Remember no spoils, plus it's speculation)
I feel like Nyx is just that random powerful person that Wonderland (the show) will have and then random magical macguffin for Once.
That's because Nyx doesn't seem to friendly and just sits underwater with her god-like powers. I don't even know if she can leave that water, so LAncelot's dad and her must have made tacos in a pool or something.