There are multiple ways for a Favoured Soul to gain a Domain. For example, the Divine Oracle is an easily entered Prestige Class, and on its first level:
Oracle Domain: Upon adopting the divine oracle class, the character gains access to the Oracle domain. The character gains the granted power associated with the domain (+2 caster level for divination spells), and can choose the spells in that domain as her daily domain spells.
This description is obviously tailored for a Cleric; a Favoured Soul, however, does not have daily domain spells.
I have failed to find, so far, what happens when a Favoured Soul gains a domain with regard to the domain spells. I surmise one of 3 effects are possible:
- Nothing,
- The domain spells are added to the Favoured Soul accessible spells,
- The domain spells are added to the Favoured Soul known spells.
I have seen many builds using the latter and even advice to seek Domains out, which is of course the most favorable reading, but I have failed so far to find any rule.
Have I missed the rule? Or it this up to the DM?
For completeness, here is a short list of Prestige Classes granting extra domains, in cases there are differences per book:
- Complete Divine: Church Inquisitor, Contemplative, Divine Oracle, Sacred Exorcist,
- Draconomicon: Dracolyte,
- Player's Guide to Faerun: Divine Disciple,
- Races of the Dragon: Singer of Concordance.
Best Answer
Add the domain spells to your class spell list, but you don't automatically know them. You have to allocate some of your limited supply of spells-known if you want to learn them.
From Complete Divine p.20: