A Part, and yet Apart

[Kaiser-Ace]

Totally on the theoretical here, but I'd be curious as to if our WoL's Echo, in the future, would be strong enough to shield or encapsulate another person's mind-soul space in order to protect them when fighting a Primal.

Alternatively, with an Echo user inside someone's mind-soul space, would the person they're inside (not necessarily in a possession way, but like how the WoL enters Thancred's to force Laha out in Prae) be immune to tempering as well?

It seems to me like a skilled Echo user could be very, very, very powerful indeed. We need to get on studying.

We need to beat the answers out if Elidibus if we want any because he's the only one who knows the Echo's true limits and isn't intending to share willingly.