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Genshin Impact - The Basics of Item Upgrading in Genshin Impact Item upgrading is the primary method to boost the stats of weapons and armor and the character/ship stats. When an item is upgraded its rarity, iLevel and any additional modifiers are raised. Some items require a special resource to upgrade. These resources can be obtained from small loot box or found around the world. Rerolling Genshin Impact offers a variety of rerolling options, however many players find the time commitment required to reroll is prohibitive. The