Kara no Magatama

After the Nightmare Invasion, the Kara-no-Magatama never left the Illusory Labyrinth and as the years passed fell into being nothing more than a myth whispered about by the residents of Mosooriku.

Limitless Absorption (Passive) (4)
The Kara-no-Magatama can absorb near-infinite amounts of mana into itself from attacks directed at it or any non-living thing that is touching it or is in a chain of objects that eventually touches the Kara-no-Magatama. This can neutralize an amount of power approximately equal to that of a Power 2 deity's.

History
The Kara-no-Magatama was never used before it was put in the South as one of the 5 Divine Artifacts holding up the law around Mosooriku.