Shadow Chain

The Shadow Chain is a weapon of "True" Dume, made of unbreakable steel.

Origin
The Shadow Chain's origin is unknown, although it is said that "True" Dume himself made it as his own weapon.

Powers
The Shadow Chain can turn a person into evil with a whip, even the most powerful Toa of Light. It can also change one's element into Shadow, make a shield of darkness, or put a person into endless nightmares, although it cannot take away one's life (that is why "True" Dume made the Sword of Judgement). There are still unknown powers in this mysterious link of steel rings.