[quote=@Zanavy]
[@Thundercrash]Hm. I just realized Rebeca is one of the few characters who has never directly heard from their Avatar. Perhaps the Red Orb might unlock Groudon's consciousness?
[/quote]

I've thought about this before, and here's the thing. I think that I had a different idea of what being an Avatar is than what everyone else did. Thus far, what I've seen is that for most people, or at least those who are still here, the Legendary that they are the Avatar of is essentially a guest inside their body, and they are borrowing that Legendary's power for themselves. 

Whereas what I had thought of was that the Avatar was an actual fusion of human and Legendary. Groudon isn't inside Rebeca, Rebeca [b]is[/b] Groudon. When Rebeca is in her base form, she is still more or less her original self. In Primal form, her mind is more Groudon than the original Rebeca.