This sound comes from Yasuo, a champion in Riot Games' League of Legends, using his ultimate ability with the Korean voice pack. Yasuo has been one of the game's most recognizable champions since his release in 2013, and his voice lines spread widely through montages, champion edits, and short gaming clips online. The Korean dub became especially popular because of its crisp, high-intensity delivery, which fits fast edits and highlight reels. It remains common in League content whenever creators want a stylish cue for a clutch or flashy play.