Which attack is stronger?

I think it was said that elves last name is that of their birth place, but I can't find confirmation on the wikia.

Edit: Okay, so it seems that what I recall was wrong. In which case, what was that cultural detail about the elves names?

Enyo’s plan was to take the 6 powers of Orario and bog them down in fights against the 6 Demi-spirits and then use a seventh to kill everyone.

What if the Astrea and Ishtar familias survived and there is now 8 power houses in Orario. What would Enyo due then? Add more Demi-spirits? Because I think that wouldn’t work because the ritual requires 6. So what would even be the plan here to wipe out everyone at once?

I have one, but unfortunately the panels aren't fully displayed; there's always a little part cut, I can still read but meh. So if anyone has a link where there's no problem like that, I would like to have it, please