I can appreciate the explanations provided here, but I'm still really, really confused re: a lot of this terminology. So is Luca basically turning into a Reyvateil with this set of Echoes, and you want the beginnings of her magical abilities?

I'm also confused about that last one because it seems like an... Echo within an Echo, which is not really how the system is intended to work, so if you could expand upon this in more laymen terms, that would be great.