Genshin impact which gives elemental mastery

In Genshin Impact, Elemental Mastery is a character’s ability that determines how effectively they use their elemental power. The higher the mastery of the elements, the more damage the character can deal to enemies and the more effects he can apply to them. In addition, higher Elemental Mastery allows the character to regenerate elemental energy faster and use it more effectively to create special elemental combinations.