[quote=@Multifarious]
<Snipped quote by Intrepid>

Wait, will that really work? It was just a random thought.
[/quote]

It should. You can force it to become hollow and it can act as a humanoid vessel for the power.

[quote=@Fractured]
<Snipped quote by Multifarious>

What's a guardian?
[/quote]

I guess that means Acacia's never shown you her abilities. She calls them guardians, or guardian angels. They're... It's complicated. They're pseudophysical manifestations that represent people close to her.