So far I've come to the conclusion that it can't kill God or Death (they're more powerful than Lucifer, so it's unlikely that they could get killed by anything he could survive) and I've been debating on whether or not it could kill Micheal (since the heavenly side apparently believes he's stronger than Lucifer, but I think he's more on the same level).
I need to read this fic too.
So far I've come to the conclusion that it can't kill God or Death (they're more powerful than Lucifer, so it's unlikely that they could get killed by anything he could survive) and I've been debating on whether or not it could kill Micheal (since the heavenly side apparently believes he's stronger than Lucifer, but I think he's more on the same level).