The Aztecs are one of two Mesoamerican Civilizations. As such they lack any access to Cavalry technology, including all stable units and cavalry archers. They possess some of the strongest infantry coupled by indisputably the best Monks in the game. Every Monastery technology is available to them and each one grants an additonal 5 HP, allowing the normally fragile monk to be more durable. They are one of only two civilizations (the other being Mayans) that starts a standard game with an Eagle Warrior, not Scout Cavalry.