Oni are creatures from Japanese folklore that share many similarities with traditional demons and ogres. They are usually depicted with reddish skin, horns, spikes, and a metal mallet called a kanabo.
Hanzo, of course, is not equipped with a mallet, but with a bow, so I transformed one of his arms into a kanabo, added tattoos and an oni mask that we can find in Japanese theaters. On the belt, I’ve added the kanji for “oni”.