Chidori, Narutopedia

The Chidori is a high concentration of lightning chakra channelled around the user's hand. The Chidori was created by Kakashi Hatake after he failed to apply his lightning-nature to the Rasengan. He intended for the Chidori to be a weapon used only to protect friends and loved ones. To perform, the user first gathers lightning to their hand; the high concentration of electricity produces a sound reminiscent of many birds chirping, hence the name. The lightning chakra has been shown on occasions

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