Dark Chakra

Dark Chakra (闇のチャクラ, Yami no Chakura) is a special chakra formed from the negative emotions of the heart. Created by the Zero-Tails, as it feeds on the negative emotions of the people around it, it is shown to be extremely powerful, being used to power the Land of the Sky's Ancor Vantian and grants Shinnō powerful techniques with seemingly no drawbacks, though it eventually destroys the mind, and rots the soul of the user.

Naraku and his jinchūriki can also create and use this chakra.