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What is an Upgrade Item in Genshin Impact? Upgrade items are a special kind of item that can help Pokemon evolve. They can be obtained by spinning Pokestop discs, or as rewards for events that are related to evolution. They can be incorporated into armor, weapons, trinkets, and gathering tools to add stats or effects. Certain upgrades also come with a special cosmetic effect when used. Upgrade components Upgrade components are items that can be put into armor, weapons or trinkets to give an