Yasaka Magatama

Using the completed form of Susanoo, Itachi creates the Yasaka no Magatama with its right arms, consisting from three tomoe bound together through their centre's by a single circular chakra thread. Due to this construction, 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.

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

Trivia

 * The construction of the Yasaka no Magatama, three tomoe bound together by a single circular line, is reminiscent of the completed form of the Sharingan.