How do you fight the Niefel giants?

[SlipperyJim]

Originally Posted by Sombre

And if you aren't a nation with strong fire mages or sacreds that you'd want to give a F9 bless?

Well, that leads back to a number of other suggestions that have already been made. Paralyze, Petrify, skelespam, Soul Slay, and other forms of battle magic can all be helpful.

And if you don't have any battle magic worth mentioning? Raid the heck out of Niefelheim, then try to convince him to pick another target.

And if you can't raid? Um ... try diplomacy. Make some friends!

And if you can't make any friends? Go AI and try again in another game.