Firebug |
So, Spell Scars does 2 things.
1) You can cast from them as if they were scrolls
2) You can prepare your spells from them as if using Spell Mastery.
Q: As a Spontaneous caster, do you prepare spells?
A: No, you do not prepare spells. Spell Scars 2 does nothing for Eldritch Scion.
If you can find a FAQ that says adding spells to your list of spells you can prepare affects a spontaneous caster's spell known, I'd love to know.