Risotto Nero

Risotto Nero leads through a lethal mastery over iron via his Stand, Metallica. Composed of infinite tiny, featureless metallic strips, the ability allows him to manipulate hemoglobin and project magnetic auras that transform blood into weapons like nails and razor blades. He can manifest these objects directly inside an opponent's body to cause fatal internal injuries or severe iron deficiency. To sustain himself during combat, he uses his own blood to create iron stitches that seal his wounds.