https://www.openlearning.com/u..../swainmcguire-sl3jv7
https://wolfinsect7.bravejourn....al.net/what-to-look-
Genshin Impact - The Basics of Item Upgrading in Genshin Impact The primary method of increasing the stats of weapon/armor and character/ship stats. When an item is upgraded, its rarity and iLevel rise along with any additional modifiers it might possess. Some items can only be upgraded by using the use of a specific resource. These resources can be obtained from small loot boxes or found in the world.