Iso joined Valorant as a Chinese duelist in October 2023, and his ultimate, Kill Contract, quickly became one of the game's most recognisable ability cues. The ability pulls Iso and one enemy into a separate interdimensional arena for a forced duel, a concept that stood out even in a roster full of flashes and smokes. Clips of the activation spread through TikTok, YouTube Shorts and Discord soundboards because the sound alone signals that a 1v1 is about to happen, making it a shorthand for isolating an opponent in gaming edits.