Originally, there was only one caste of clerics. They were formed under the goddess of Tul-Sith. With her as their guide, clerics stretched far and wide healing the sick and wounded and protecting all from danger with their clerical spells.
The prime requisite of Clerics is wisdom. They are specialists in healing hit points, creating protective spells, and many clerical enchantments. Unlike in the past, they can now worship any of the pantheon.