Kankyoku

The Kankyoku (寒極, Kankyoku) is a unique item created and developed by Yukigakure. Originally, it's purpose was to serve as a weather device that could regulate the temperature of the Land of Snow. However, after seeing it's potential, it was finalized as a weapon. Due to it's unstable design, the Kankyoku requires a human catalyst for it to work, being powered from chakra. To fully harness the power of the Kankyoku, a catalyst of the Yuki Clan is preferred. Currently, it is sealed within Hiyō.