A fully developed pantheon of 29 good and evil gods, to aid and torment characters. There is more power for all your players. The book delves into the soul and life force and their uses by necromancers as well as a character gaining grace or even sainthood. Each faith gets specific capabilities, devotions, rites, and rituals. Sacred Spellcasting is something else they have access to. Finally, each faith has added specific uses for their Channel Energy.
The Tome of the Gods will open many more opportunities for adventure and role-playing in your campaign. Give Passion to your players and what motivates them to greatness.