Zenkaiken

"A Great Sword for the Great Terror.."

- Gensai

Zenkai (全壊剣, Zenkaiken) is the legendary blade of Gensai. It is a very large sword which is often called the Grandfather Sword, said to have existed over many years, being wielded by many legendary figures. Gensai managed to steal it and since then, he has grown accustomed to it. The sword has the ability cause great destruction by the user flowing chakra into it, increasing it's power and sharpness greatly.