Cool... possessions, if they weren't so easy/low, would be Tezcatlipoca's thing as God of "mischief" as well I suppose... Actually he seems to be one of the few "Dark Gods" who isn't the primary god of war (Huitzilopoctli is), strange that.

I don't know too much about actuall mesoamerican culture (thus rituals) though - I think it's pretty hazy, and the Spanish reports are naturally a little biased... I'd love to learn Nahuatl but it's so dissimilar to English - and it;s been basicaly lost and corrupted now anyway.. shame..