Note: Spoilers up to Act 3

The Meteorite Bracer is an equipable accessory that doubles the wearer’s agility. It can also be equipped by all characters and monster companions. This powerful accessory can be obtained in a treasure chest located in Gotha Castle. However, the treasure chest is only accessible with the Magic Key. A second Meteorite Bracer can also be obtained from the postgame T’n’T Board. 

Getting the Magic Key

The Magic Key is a special item that opens 4 special doors throughout the world. These doors lead to several treasure chests allowing the player to obtain helpful items. The Magic Key can be obtained in Act 3 from a treasure chest in Lofty Peak.

The Magic Key is obtainable from the first time you arrive in Lofty Peak. Simply speak to the woman in the picture below to open up a path to the treasure chest containing the key.

Getting the Meteorite Bracer

The Meteorite Bracer can be obtained in Gotha Castle once you get the Magic Key. First zoom to Gotha and head into Gotha Castle.

Once you enter Gotha Castle, head up the first staircase you see and take a left at the first intersection. Travel straight and use the Magic Key and the locked room with 2 treasure chests. The Meteorite Bracer is located in the first treasure chest while the second contains 3000 gold coins. 

A second Meteorite Bracer can be obtained in the postgame from the Stark T’n’T Board. The accessory can be purchased from a shop tile for 6500 gold coins.