Ancient Core

Ancient Cores are items in.

Location and Uses
Ancient cores are a rare drop from Guardians. They can also appear in Treasure Chests found in the Overworld, in Shrines and amiibo rewards. Link can give them to Purah at the Hateno Ancient Tech Lab to upgrade his Runes. Alternatively, they can be used at the Akkala Ancient Tech Lab as ingredients to create various pieces of Ancient equipment, including the Ancient Armor Set, Ancient Short Sword, Ancient Bladesaw and Ancient Spear. Five Ancient Cores are needed for the third upgrade of each piece of the Ancient Armor Set at a Great Fairy Fountain.

Another variety of Ancient Cores are Giant Ancient Cores. These are very rare drops from Guardians and can sometimes be found in Treasure Chests within Shrines. They can be used at the Akkala Ancient Tech Lab as ingredients to create the Ancient Shield and the Ancient Bow. Two Giant Ancient Cores are needed for the fourth and final upgrade of each piece of the Ancient Armor Set at a Great Fairy Fountain.