I really do not expect that you alone will add that idea. They will probably stop for one day to launch the fountain and then each one for himself and God for all.
But, it would be a good idea, that in the crafting tables,
Increase Item Attributes -
Percentage - Static.
and Maximum amount of evolutions [something like this]
So every time an item was 'evolved', the intersect itself could already add static or percentage points to the basic attributes of the weapon.
Only very basic attributes. And in the case of weapons, attributes, more damage.
It would be an option to activate or not as the event inspector, the event page.
So to create normal items without changing the item in the database, just do not mark. But if it were an evolution of the same item, the intersect would add +1, and increase the value set by the creator.
This would save you from filling in the database of items, +1, +2, +3, which are basically a copy of the original with some increased status. I do not have it for my game. This type of evolution of items, I use a different system precisely to save time and space in the database. But I see a lot of people doing that.