Dark Link

Dark Link, is a dark reflection of Link. Dark Link is one of the most enigmatic enemy characters in the The Legend of Zelda universe, usually appearing with no backstory and no dialogue (though implied on numerous occasions to be merely constructs of shadow magic) and presenting a challenge like no other, as Link has to face his own strength turned against him. Dark Link is more than just a mere battle against a monster for Link, but a battle against himself. As such, he is often the ultimate challenge, and is faced as final boss on one occasion and as the final boss of optional challenges such as the Palace of the Four Sword and Take 'Em All On!.