The 'Dearest Karthus' copypasta is a satirical trope within the League of Legends community, written in the style of a Victorian-era formal letter. It typically addresses Karthus, a champion known for his global ultimate ability 'Requiem,' which strikes all enemies regardless of their position on the map. The meme gained traction on platforms like Reddit and Twitch as a humorous way to urge a Karthus player to finish off low-health opponents or to mock the simplicity of his gameplay mechanics. Its charm lies in the stark contrast between the polite, archaic language of a handwritten letter and the chaotic, high-stakes environment of a competitive MOBA, usually culminating in a desperate plea for the player to simply 'press R' for a free kill.