* Using a rare, supreme, or fantastic bow string to string a bow makes it lose the status and become a normal bow string.
* Any rarity on tool and weapon heads (including blades and spear tips) will transfer over to the completed item.
* Any rarity on [[fragments]] will transfer over to the completed item. Note activate the rare and combine with the non rare fragment.
* Rarity of [[ore]] will transfer to a [[metal lumps|metal lump]] when smelted.
* A moment of inspiration while improving has a small chance to turn an item into a rare, supreme or fantastic.