I suggested it before, and I saw people suggested it before me, and I really hope you add this feature.
My weaponsmith has been expanded to the maximum capacity (80). There are always something I like to keep (like 4- and 5-star power core) and something I even don't want to see (like 2-star power core).
You can say that the low level weapons can be used in power-up higher weapons but I don't have many weapons to power-up and I want to save some scrolls.
Hope I can see it in the next release.
And I'd like a Weapon Market, where Magetale players can exchange their weapons.