"To learn and cast a spell, a Favored Soul must have a Charisma score equal to at least 10 + spell level."
And yet I see a build listed that starts with 12 charisma (and spends no level ups on cha) and he has his spell list all the way up to level 9 spells. Do you not need 19 base charisma to cast level 9 spells? (every other game I've ever played it was always base stat). Even with +4 tome that's still a long ways from 19.
My other general question is, why would you choose favored soul over cleric? I'm trying to decide between favored soul and cleric. It seems the fact that they use charisma for spell level and wisdom for spell dc would make them the worst / least effective of all the casters. So my best guess is go cleric if you want a good divine caster and favored soul is maybe a better battle cleric. Is that more or less true?