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After testing the Equivalent Matter Exchange Skill a bit more, I realized there were a lot of liberties. I could even technically target magic structures, a house in these ruins, or even a whole tree as what I wanted to exchange. But to create a jewel like the one I gave to Erika, I would've needed to give up every single tree here, and that would have been too much.
To think all these trees are not as valuable as that single skill-upgrading item… It is a bit excessive, but I guess that's how the Skill itself works, and how they see it. I can already imagine using it against foes in imaginative ways. I simply cannot use living beings for this.
The plants weren't living when I offered them, living trees can't be used for example… But perhaps in the future that won't be an issue anymore, if the skill can eventually be upgraded somehow.
