Tenseigan (Energy Vessel)

A sacred treasure of the Ōtsutsuki Clan, it had been used for millennia to seal the Byakugan eyes of the Clan to combine their power. As such, it has the power to create massive blasts of chakra that can wipe out entire armies in a similar manner to the Tailed Beast Ball, and could be used to give a user the Tenseigan when they have the Byakugan implanted into their own eyes.