[Ygorl]

But priests can only raise dominion up to a small positive level, and not nearly as effectively as temples (or blood sacrifices). From my own (limited, certainly) experience, a Mictlan nation with a medium-dominion pretender can push dominion just as effectively as anyone else - and if you made it a priority, with a high-dominion pretender and jade knives, it would be pretty astonishing. It also wouldn't be that expensive. Spending 50 or even 100 blood slaves (if you have a *massive* frontier) a turn isn't a big deal for late-game Mictlan; you're probably making 20+ per province your hunting in, so you can easily have plenty more for those devils etc.
Is 100 temple checks better than 14 extra devils? Maybe not, but depending on the circumstances...