[MaxWilson]

If they're N9 berserkers they're taking extra fatigue and are no longer 0-enc w/ an E9 bless. (Plus, Niefel Jarls will have to wait till they're done buffing to bless, or else you can just hit them with a flyer to berserk them.) The high regen makes Drain Life less viable against them without large numbers of casters, but the increased fatigue (2 per turn) makes them more vulnerable to skelly spam/mechanical men.

So, as Helheim, I suspect you'd be raiding behind his lines (cranking up taxes) to weaken his economy, and if he heads for your capital you'd empty the library and smash his E9N9 Niefel Giants with your researchers. You don't have to win *every* pitched battle, you just need to be able to stop him from walking all over you. Sounds like a fun game.

-Max