Mugen-no-Magatama

In the time after the Nightmare Invasion, the Mugen-no-Magatama never left the Illusory Labyrinth and still lies within.

Limitless Power (Passive) (4)
The Mugen-no-Magatama is a powerful magatama bead that can generate near-infinite amounts of mana. This is equivalent to a Power 2 deity.

History
The Mugen-no-Magatama was only ever used once, by the hero Kagehana, during a quest for Bahamut, before it was stored in the north to hold up the law held up by 5 of Mina's Divine Artifacts.