Runitari

That opens up a whole other can of questions, but I see what you mean.

Spoilers noted

My thoughts behind this is the fact that the metalminds in Era 2 were able to give the Southern Scadrians the ability to understand the local language. This would mean that the connection they give is more than just friendships. It must allow a connection of the Spirit Web itself, or at least a one way connection to it. We have seen others use Connection to link abilities , and even if its just information there. One could speculate that is due to the shallow connection. A deeper one, a strong enough one could create such a thing.

We know that Resonance occurs in Twinborn, and I was curious about F-Duralumin in the case of certain Allomantic abilities. Since tapping the metalminds gives spiritual connection, could you create a strong enough bond to temporarily share Allomantic ability? Or even Feruchemical? Since they are alterations to the Spiritual Web I am just curious on how others think this might work.