Murakumogiri is a naginata and one of the 12 Supreme Grade Blades.[3] It was used by Edward Newgate for over 46 years until his death.Murakumogiri is a massive bisento (polearm/naginata) wielded by Edward Whitebeard Newgate in One Piece, recognized as one of the 12 Supreme Grade Blades. Known as Cloud Cutter, it is exceptionally durable, having clashed with Roger's Ace, Oden's Enma, and survived attacks from Akainu. After Whitebeard's death, it rests on his grave. Key Details about Murakumogiri:Type: Tomoe-type naginata (bisento) with a large curved blade and a red/yellow striped pole.Grade: One of the 12 Supreme Grade Blades (Saijo O Wazamono), placing it among the most powerful weapons in the world.Wielder: Edward Newgate (Whitebeard).Abilities: Combined with Whitebeard’s, it could withstand magma attacks from Akainu without visible damage.Current Location: Placed on Whitebeard's grave in the New World. The name is derived from the legendary Japanese sword, Ame-no-Murakumo-no-Tsurug