Sukuna Finger is a Legendary Item that is based of the fingers of the antagonist of Jujutsu Kaisen, Ryomen Sukuna, who had 4 hands and two faces. In order to live after death, he became a curse and seperated his soul into his 20 fingers, all vessels of immense power, and scattered them. They emitted enormous amounts of cursed energy that would attract curses and, if eaten, would increase their power and turn them into a class of curses known as Special Grade