A battle—worn straight spear that has undergone radical modifications. Shima Sakon, nicknamed "Oni " (demon), used the experience he gained in 100 battles to order this custom—made spear from one of his trusted craftsmen. The blade has been rigorously sharpened and is rumoured never to have lost its edge, even after many battles. Sakon, a ronin who worked for the Tsutsui clan among others, received repeated offers from Ishida Mitsunari, who was in awe of his talents. Aware of his considerable skills as a tactician, Sakon commanded a hefty fee for his services.