So I was thinking about doing a matchup and I was wondering something. If you have Non-Physical Interaction that specifically allows you to Touch, Harm and even kill Ghosts/Spirits/Etc can you kill someone with Low-Godly Regen by continuously One-Shotting them with a Massive AP Advantage and a Constant Stream of Attacks (something like an Flamethrower or Energy Blast that keeps going for longer than a few seconds)?
Firstly, a constant stream of attacks doesn't seem relevant here. If you can overcome their regen, you don't need to keep attacking them. If you can't overcome their regen, repeated attacks only incaps, which can be enough for a win, but doesn't turn it into a kill.
Secondly, I don't think we assume that low-godly regen can be overcome just because you can interact with ghosts. It'd need to be a really specific situation, like their physical form comes back because of their ghostly true form, that NEP would be able to overcome.
In most situations I'm familiar with, just NEP wouldn't override low-godly.
Low-Godly isn't regenerating the soul, so if you have attacks that target and destroy the soul, Low-Godly is useless.
But the OP didn't say "attacks that target the soul", they said "attacks that can kill ghosts", I don't think we really equalize the two.