The Alley Flash is a 4-star sword in Genshin Impact with a secondary stat of Elemental Mastery that focuses on boosting the user's DMG.
Its effect is as follows:
As the sword's effect is essentially free DMG in the hands of a skilled player, it's worth noting that several characters can effectively use it. Likewise, some characters also appreciate its Elemental Mastery, even if it has the lowest Elemental Mastery out of any sword in Genshin Impact.
Genshin Impact players can only get this sword on
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