Naydra's Scale

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Location and Uses
Naydra's Scale can be collected from the dragon, Naydra, who rests atop Mount Lanayru. After rescuing Naydra from the Malice, Link will be able to shoot its main body and retrieve the scale.

Link must place a Naydra's Scale inside the Spring of Wisdom to complete the Shrine Quest of the same name. Doing so will yield the way to a shrine.

A Naydra's Scale can also be found in a chest in Hyrule Castle (Breath of the Wild).