Metallica

Metallica belongs to Risotto Nero and appears during Part 5 of the series. Rather than a single fighter, it exists as a cluster of small metal-bodied creatures sewn with stitches, dwelling within Risotto himself, their mouths locked in a moan or a scream. Because these beings stay rooted in place, the Stand cannot strike on its own initiative. What makes it fearsome instead is the magnetic force it generates, which Risotto wields with enough skill to eliminate opponents without ever being seen.

The heart of the power is control over iron. Using magnetism, Risotto pulls the metal from the air, the soil, and even the bloodstream of a living person, shaping it into whatever he needs within a radius of roughly five to ten meters. Since iron sits among the most abundant substances on the planet, present in water, sand, and plants such as spinach, he is never short of raw material for a weapon.

His signature trick converts the iron inside a victim's blood into blades, pins, or scissors that carve them apart from within. Stripping that iron away also collapses the body's hemoglobin, so the blood slowly turns from red to yellow and loses its capacity to carry oxygen. A target left this way suffocates and dies unless the iron is restored, letting Risotto simply wait out the end. A second application coats his own skin with fine iron dust, bending light around him and rendering him invisible against any backdrop.

Risotto Nero, leader of the assassination squad in Vento Aureo, is the sole wielder. He leans on Metallica to hunt covertly, forming staples to reattach his own severed limbs and once turning Vinegar Doppio's own blood into a face full of needles when Doppio rushed him.