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What is an Upgrade Item in Genshin Impact? Upgrade items are special items that aid certain Pokemon evolve. They can be obtained by spinning Pokestop discs, or as rewards for events that are related to evolution. They can be put into armor, weapons trinkets, weapons, and gathering tools to add stats or effects. Certain upgrades also come with an extra cosmetic effect when employed. Upgrade components Upgrade components can be incorporated into weapons, armors and trinkets to provide an additional effect or unique feature w