I am enjoying a lot playing a fire Theologian Cleric with a focus in the fireball spell and I was guessing if something similar can be done with lightning bolt.
For reference the base of the built for the fireball case is:
- Fire domain for fireball
- Theologian for slotting out of
domain slots and free Focused Spell metamagic - Spell Focus as prerequisite and +1 DC to evocation spells
- Varisian
Tattoo for +1 CL on evocation spells - Spell Specialization
for +2 CL on fireball and opens the road for spontaneously casting fireball from level 9 onwards - Magical Lineage for -1 spell level
requirement on metamagic feats - Empower Spell for +50% extra
damage
At level 7 the cleric can use a level 4 slot to cast an empowered focused fireball with CL 10 (DC +3; 10d6+50%) and still channel for healing and use other spells for battle control and buffing. It can also work pretty good dropping the Theologian archetype.
Any road to do this with a god lover of lightning?
Best Answer
Samsaran race with Mystic Past Life alternate racial trait lets you learn a few off-list spells. They must match your actual class in arcane/divine type, but are otherwise unrestricted. Lightning Bolt exists as a divine spell via the Adept class, so it's a valid choice.
Page of Spell Knowledge adds any one spell to any caster class. It's supposed to require spontaneous casting, and supposed to only apply to spells that are already on your class list... but those are just prereqs for using a magic item, so you can spoof them with UMD.
Lightning subdomain has Lightning Bolt. However, your limited number of domain spell-slots make this not great for a heavy specialization, unless you also import the Domain Spontaneity feat from 3.5e.
Dreamed Secrets lets a divine caster learn Wizard spells. However, it's not appropriate for spells you plan to specialize in, since you can't cast them reliably; it takes a Will save (DC 20) each time you try.