Koholint Sword

The Level 2 Sword is an item in.

Location and Uses
Link can replace his current Sword with the Level 2 Sword by finding and bringing 20 Secret Seashells to the Spirit of the Mansion in the Seashell Mansion.

When Link is unharmed, the Sword will emit Sword Beams when he uses it, similarly to other Swords like the Magical and Master Sword.

Trivia

 * When Link receives the Level 2 Sword, the game suggests that he writes his name on it. This is a reference to his previous Sword, which has his name engraved on it.