Master Ore

Master Ore is an item in.

Location and Uses
Master Ore can be found inside the Dark Palace, Thieves' Hideout, Skull Woods, and the Sanctuary of Lorule. It can be used to upgrade the Master Sword. Each upgrade requires two chunks of Master Ore. The first upgrade is done by the Blacksmith in Hyrule, while the second upgrade is done by the Blacksmith in Lorule. Each time the Master Sword is upgraded, its attack power is doubled.