The Master Sword is wielded by Vincent. At first, they thought it was the Blade of the Devil, but later on, it seemed that Fi was in the sword, and that it actually the Master Sword is. It talks a lot.
Legend of Vincent[]
Blade of the Devil first met Vincent in the Tomb of the Hero, where BotD was pulled out his stand. Later on, he complained a lot: It can`t eat ice cream. And it said it lives too. Later, it taught Vincent how to use his Triforce. It was later revealed that it is the Master Sword, and that Fi was trapped inside of it, and did not know who she was.