For each Level of 16th Night:
Increases ranged physical damage by 2%.

When equipped with Kagerou Stone(Garment):
Increases damage of Cross Slash by 25%.

[iRO Description]
For every level of 16th Night learned, increase long ranged physical damage by 2%.
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Set Bonus:
Kagerou Stone (Middle)
Kagerou Stone (Garment)

Increase Cross Slash damage by 25%.