The Yata Mirror was equipped to Itachi's Susanoo, in its left hand and, is considered one of the three sacred treasures. It is said to be endowed with all nature transformations and as such changes its own characteristics depending on those of the attack it receives, making the attack entirely ineffective. Zetsu claimed that this, combined with the Sword of Totsuka held in its right hand, essentially made Itachi's Susanoo invincible.[2]
Influence
The Yata no Kagami (八咫鏡, literally meaning: Eight Span Mirror) is one of the Three Imperial Regalia of Japan (三種の神器, Sanshu no Jingi), together with the Kusanagi no Tsurugi (草薙劍, literally meaning: Grass Cutter Sword) and the Yasakani no Magatama (八尺瓊曲玉, literally meaning: Eight Shaku Curved Jewel).
