Just throwing this concept out here

[alexti]

@BOrsuk: in the current state, late game plays pretty similarly, no matter whan nation you've started with. It would be nice to have more nation-specific late game. Increasing costs of non-nation paths would make such setups more expensive and made an option of trying to do with limited set of paths more attractive (I don't think this approach is practical in longer MP now). Making dual-9 cost more would be a good thing too (though proposed system would still made it easy to take insane blesses with Mictlan).