Grim

Grim (メッキ拳 Kibishī) is the name of the scythe that Ignis D. Shizen of The No Beard Pirates wields. Shizen uses this scythe in conjunction with his devil fruit, of which he immobilizes the target, and cuts them down.

Grim is made out of Eve Steel, which is known as the steel counterpart to Adam Wood. As such, the substance is very durable, strong, and valuable.

Trivia

 * The name "Grim" is a pun, based off of Shizen's epithet, "Shizen the Reaper", as Grim comes from "Grim Reaper".