“Trap is my essence; it’s what I do,” says Omy de Oro in the liner notes of his 2020 debut album, El Rey del Punchline, and fans would be hard-pressed to disagree. The rapper has one of the fiercest flows in contemporary urbano—the kind of deadpan, rapid-fire delivery that holds inescapable authority and brings the street straight into the headphones. He comes by his hardboiled style honestly: He honed his skills freestyling while he worked as a paramedic in his native Puerto Rico. After Alex Killer signed him to Young Boss Entertainment in 2018, Omy proved he could match high-profile collaborators like Bad Bunny bar for bar.