As one of the 12 Supreme Grade swords, Murakumogiri is one of the most powerful weapons ever created. With Whitebeard's immense power and skill, Murakumogiri was strong enough to clash with Kozuki Oden's dual legendary Meitos Enma and Ame no Habakiri and Shanks' saber, the Gryphon, which caused the clouds (and even the heavens) to split. Whitebeard usually employed the naginata with both hands, but could also use it proficiently with just one hand.Most of the time he kept it in his right hand, though he occasionally planted its blade in the ground in order to use both of his hands for his Devil Fruit. The naginata could be used in conjunction with his Devil Fruit and Busoshoku Haki to increase the already great damage it could inflict, as well as to neutralize any potential Devil Fruit defense his opponents may possess. The Murakumogiri has immense durability, having stopped Akainu's magma attack without melting or receiving any visible damage, though this may have resulted from Whitebeard coating it with Busoshoku Haki. It sustained a two-handed downward swing from giant Vice Admiral John Giant as well. Two years after Whitebeard's death, the weapon still showed no signs of decay in spite of two years of weathering the elements, further demonstrating its durability. Whitebeard was first seen with the weapon in his possession while he was a member of the Rocks Pirates. He kept the naginata for over three decades later until his death at the Summit War of Marineford. Afterwards, it was placed on his grave on an island in the New World, with Whitebeard's Jolly Roger and coat hanging from it for over two years.