Trafalgar Law

Trafalgar Law's sword is a nodachi, a type of Japanese long sword, with a blade that is approximately 7 feet long. The sword has a unique design, with a cross-shaped guard and a hilt that is shaped like a heart.

The sword is named "Kikoku," which means "Demon's Cry" in Japanese, and it is a powerful weapon that Law wields with great skill. Law's Devil Fruit ability, the "Ope Ope no Mi," allows him to manipulate objects within a certain radius, including his own body and other people. When combined with his swordsmanship skills, Law is able to use Kikoku to devastating effect, cutting through objects and even people with ease.

One of the most notable features of Kikoku is its ability to generate a "Room" of space where Law can manipulate objects with his Devil Fruit powers. By using his sword as a focal point, Law can create a spherical space within which he can control objects and people. This makes Law an incredibly formidable opponent, as he can use his sword to cut through opponents while also manipulating the space around him to gain an advantage in battle.