The Seashell Sword is an upgraded version of the sword that Link starts his quest with in Link's Awakening. It can be found at the Seashell Mansion in the Ukuku Prairie, east of Mabe Village. Link must have collected at least 20 of the 26 Secret Seashells located across Koholint Island.
Power and Abilities
This sword does twice the damage of the Level 1 sword. For example, an enemy that previously took two hits to kill now only takes one, thanks to the more powerful Seashell Sword. It also gives Link the Sword Beam. When Link is at full hearts, this sword fires off a type of laser beam, which does half the damage of a normal sword slash.