Name: ~Weapon of Ancients / Heiki (Weapon) Kodaijin (Ancients)
Appearance: Its normal looks is in the Avatar, the Claw held by Kessen
Special Abilities:
The weapon of ancients, is a artifact of the Kazekage. Comprising special abilities, the ability to change into any kind of weapon. Sword , spear , gauntlet , katana , Samurai Sword etc. Although it does not have any kind of special property except to absorb the elements of the user and used it to the weapon itself. For example if the user's element is fire and wind, the sword can absorb it and envelop the weapon in fire or wind. (It takes one post before it can change into another weapon). It drains chakra from the user everytime the user changes the weapon into another weapon.
Origin: A priceless weapon of the Kazekage, he gave it to Kessen as a gift on being appointed as a Sannin of Sunagakure. The Kazekage mentioned that it was a weapon of the Kazekage's for generations. And it held powers beyond on what you can think. The Kazekage also told Kessen that it was crafted by a famous blacksmith Sunagakure before he was born, he used a special material so it could absorb the user's element, and after it was handed to my grandfather, he decided to add another special ability and that is the ability to change into another weapon as long as the user knows the visual or looks of the weapon he want's to transform.