Fang of Water
水の牙 / みずのきば [mizu no kiba] or 'fang of water' in Japanese.
Final Fantasy III

Obtain: becalm the Nepto Dragon by obtaining the Nepto Eye
Use: neutralize the Water giant guarding the way to the Labyrinth of the Ancients
Description: A crystal sliver brimming with the power of water
Type: Key Item
Category: Item