Bronze is a Heroic Age god power in Age of Mythology, available to followers of Dionysus. It increases the hack armor and pierce armor of all friendly human units in a small area for one and a half minutes.
This is one of the longest lasting god powers and is best used when attacking an enemy town. This allows one's soldiers to last longer in combat and they're less likely to be killed. However it should be noted that while Bronze increases armor it does not render soldiers invincible and tactics should not be disregarded. Is better used when the player has researched most of the armory technologies.