So the language of rainbow servant's capstone feature is a little confusing and I wanted to make sure I understand exactly what it is allowing me/not allowing me to do. The class feature itself says, "Can learn and cast spells from the cleric spell list", how does that apply to a caster who is both a prepared caster(wizard) and a spontaneous caster (duskblade)? Would I be able to write cleric spells into my spellbook and then prepare them normally or metamagic'ed? And from the duskblade side, I'm assuming RAW I can't actually learn cleric spells for my spells known, but it seems like I could learn cleric spells from my "every odd level" swap?