Ailat already ahs the greatest disability of Mictlan: their dominion needs Bloods Sacrifice to spread. Also, nations replacing Abysia and Vanheim can use blood sacrifice, but aren't forced to.
Change the Bowl of the Lost/Demon Gate nation to replace Mictlan.
Interesting mod, although the nations are quite minimalistic. I especially like the Alchemist one. They surely will have lots of gold, but not much to use it for without spending more than even they can afford!