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Karthus is a long-running champion in League of Legends, an undead lich known as the Deathsinger whose deep voice and dark magic have made him a favourite for dramatic edits. Short voice clips of the champion have circulated on soundboards and in gaming videos for years, where players reuse them to greet teammates, taunt opponents or open a highlight. This repeated halo greeting works because it is only a few seconds long and instantly recognisable to League fans, so it still appears in memes, streams and Discord jokes long after its first uploads.
About this sound
The Halo Karthus Halo sound is Karthus from League of Legends repeating the greeting in his eerie undead voice, used in gaming memes for a creepy hello.
The short clip repeats the word halo twice around the name Karthus, delivered in the deep, hollow, echoing voice associated with the League of Legends champion. The first greeting lands calm and almost polite, then the second hits with a darker, more menacing edge, making the simple hello feel undead and unsettling rather than friendly. That contrast is the joke, turning an ordinary greeting into something spectral and dramatic. Played over a clip, it instantly signals that something eerie, powerful or slightly unhinged has just arrived on screen.
