D.O.N., which stands for Debilitating Overpowered Nuke, is the ultimate sword in the world, it has an Adam Wood Handle, a Precious Fiber Eden coating, Eve Steel blade, which was Dontoufied, and then it was given the properties of a Bombardier Beetle, as well as human like intellect and finally it was fed the Essensu Essensu no Mi. Making it by far the most overpowered weapon in the world.