The Dark Bargain
The Elves live in the Dark Jungle, along with the Catfolk. However, their cultures are vastly different. There are two types of Elves living in the Jungle: The City Elves and the High Elves.
The City Elves have built a civilization of small cities protected by powerful Divine Magic. They possess many Oracles and Clerics, but their technology is more primitive than that of Humans, so they tend to not be trained in Medium Armor. Their cities are similar to those of the Aztec Empire, but on a much smaller scale. They also do humanoid sacrifices to their Dark Deities, which power their Divine Protection. They are fearful of the immense beasts and monsters of the Jungle and rarely leave their cities, and then it is usually to trade with Nallen.
The High Elves live in small communities up in the canopy of the Jungle. They live in harmony with Nature and tend to live near, but not in, the abandoned Ancient Ruins that dot the Jungle. They have a lot of Hunters, Druids, and Rangers, a few Nature-based Clerics and Oracles, and similarly have more primitive technology and tend to use simple weapons and light armor.