From publisher blurb:
Channel the forces of the Pale; life and death together as one!
The Pale Theologian: Lord of Life and Death is the latest class published by Studio M— for Pathfinder 1e! The Pale Theologian draws its power from the Pale, the source of both life and death. These spellcasters draw this energy into their own body, granting them aspects of both living and undead creatures and allowing them to utilize the effects of both positive and negative energy through necromancy.
These full-casters combine both arcane and divine necromancy spells, as well as gaining the ability to cast numerous spells as necromantic variants. Able to specialize as either arcane or divine spellcasters, these theurges draw from both the Wizard and Cleric spell lists. However, their specialization in necromantic magics limits their other schools significantly.
Utilizing their secrets of the pale the Pale Theologian can customize their magical talents to suit their needs; improving their ability to create undead, fortifying their bodies with necromancy, fortifying the strenght of their soul, or empowering their healing.
The Pale Theoloigian also supports a number of popular 3rd party subsystems, featuring archetypes for Akashic Magic, Psionics, Path of War, Spheres of Power, and Champions of the Spheres!