Besides compounding, the weapon can also act as a proxy for other creation skills.
All of their claims match up until here.
Let’s come to a conclusion on the claims of their respective strengthening methods after seeing it myself. I don’t know what respective differences in characteristics their weapons have compared to my shield.
There is no game that I can use as a model, not to mention it feels like I’m reading an unfinished book.
……Though they also took a stab at my shield’s power to train companions……