Boardgamegeek https://boardgamegeek.com/boardgameexpansion/143065/tzolk-mayan-calendar-tribes-prophecies
English - In Tzolk'in: The Mayan Calendar - Tribes & Prophecies, each player now becomes the leader of a particular tribe, each of which has a special ability that only that player can use. The game includes 13 tribes to provide plenty of variety. (You know that 13 is a spooky and magical number, right?)
Ludovox http://ludovox.fr/jeu-de-societe/tzolkin-tribus-et-propheties-6728/
French - La glorieuse civilisation maya traverse des heures troubles. La nourriture se fait rare et les dieux sont sans merci.