Beating underwater nations

[Tuidjy]

In is hard to beat a water nation on a map that is primarily water, for
obvious reasons. But if you have to, you should choose Pythium or Caelum.
Not only are these two of the top nations, which will insure your supremacy
on land, but they also have mages that can go underwater. As an added bonus,
Pythium has the very best preachers in the game...