Yasaka Magatama

Using the complete form of Susanoo, Itachi creates the Yasaka Magatama with its right arms, consisting from three tomoe bound together through their centre's by a single circular chakra thread. Due to this structure, the tool acts in a similar manner to that of a shuriken when thrown by Susanoo, rapidly spinning towards the intended opponent until its ultimate collision. Itachi asserts that this is his strongest long-range technique.

When used by Madara, he creates several of them between two of Susanoo's hands with a string connecting them all. He then seperates them and hurl them all at the same time.

Influence
The is one of the, together with the  and the.

Trivia

 * The shape of the Yasaka Magatama, three tomoe bound together by a single circular line, is reminiscent of the completed form of the Sharingan as well as the Cursed Seal of Heaven.