A box with a great power sealed within it. Who sealed away this magical power, where it came from, nothing is known about this box's origins. On top of that, since it has been branded with such a high powered seal, it cannot even be opened. However, since the magic held within is so powerful, the magic power emanating from the box itself can be used, and is particularly useful in making equipment.
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- 土神泰坦殲滅戰的共鬥召喚