This article, Lightning Release: Black Panther, contains content taken directly from our mother site. All credit of such content is reserved the original authors over at Narutopedia, the original article can be read here: "Lightning Release: Black Panther".
After generating Black Lightning from their body which takes the form of a panther, the user can manipulate it to affect multiple victims at once by electrocuting them. Like various other Lightning Release techniques, the potency of this ability can be increased through the application of water.
As with many of the techniques of Kumogakure ninja, this technique has an English name given kanji that somewhat match the pronunciation. Usually, the kanji would be pronounced as 'Kokuhansa'.