Cioccolata

Cioccolata's powers and abilities

Cioccolata's Stand, Green Day, is a humanoid power Stand which spreads a deadly mold, which eventually consumes people's flesh. The mold's growth is triggered by a lowering of altitude and has unlimited range, as long as other people are infected.

Cioccolata can dismember himself and put himself back together safely

Surgical Genius: Cioccolata is a trained surgeon and his sick experiments gave him an intimate knowledge of the human body, notably on which body parts he can cut while preserving his victim's life. His surgical skills are great, as he could perform surgery on himself quickly enough to bisect his own body while Mista and Giorno went up to meet him. In addition, his knowledge of medical tools and sealing blood vessels allows him to limit his blood loss so that he wouldn't bleed out during his battle with Giorno.

While in the original manga, Cioccolata simply puts himself together afterward, the anime adaptation expands on it. Instead, Cioccolata is shown stitching himself together.