Not much is known about the Oracles, other than they are chosen to serve the gods, and they used to live in Thelos before the elves arrived to Aarandor. Following is the list of known Oracles:

Thalion of the Tribunal - Returned to the Wheel of Souls after Baridon was appeased by the elves sacrificing their immortality.

Myrna of the Wheel - Brundir's quirky Hearthling Oracle who appeared shortly after Brundir sent 10 champions on a quest to find him.