Palace of Twilight

After gaining all four shards of the Twilight Mirror, the portal to the Twilight Realm opens in the Mirror Chamber atop Arbiter's Grounds. After entering the portal, Link can reach the Palace of Twilight. The mini-boss, which is battled twice, is called Phantom Zant. There are three parts of the palace; first Link enters the right wing of the palace, and later the left wing. After collecting two Sols (the power source of the Twilight Realm, compared to the Sun in Hyrule - the word "sol" also means "sun" in Latin), the Master Sword gains the power to repel fog made from Shadow Crystals, and defeat the boss, Usurper King, Zant.