Episode 77

The Panther Tribe and the Two Swords of the Fang  is the 77th episode of the InuYasha anime.

Synopsis

 * 1) The Panther Devas are able to animate the Panther King's body with the Shikon no Tama shards that they stole from Kagome, but the giant demon sucks up the souls of Shunran, Karan and Shūran to become fully resurrected.
 * 2) Inuyasha and Sesshōmaru reluctantly work together and battle the Panther King, they defeat him when Sesshōmaru wields Tenseiga and removes the souls of the panther demons from the Panther King's body, and Inuyasha proceeds to destroy the king's body.
 * 3) The Panther Devas return to the west, vowing never to attack the dog demons again.

Summary
As the Panther demons are about to sacrifice Kagome, Sango, Miroku, and the villagers to their leader, Inuyasha cuts through their barrier with the Red Tessaiga. Annoyed with this, the Panther King absorbs the life energy out of three of the four cat warriors to take as his own (Tōran being the one who is spared.) Inuyasha and Sesshōmaru team up to combat the leader, but their attacks have no effect on him. Sesshōmaru then uses Tenseiga on the leader, taking out the life energy which the leader absorbed from his comrades. Inuyasha then kills the leader with the Kaze no Kizu. Sesshōmaru's attack also revives the three panther demons that were killed, much to their surprise. In light of everything that's just happened, Inuyasha asks if the panther demons really plan to continue their war against the dog demons, to which Tōran agrees that there is no point, and calls for her siblings to return home.