Thragg comes from Invincible, the comic created by Robert Kirkman, Cory Walker and Ryan Ottley, later adapted into the animated series. As the ruthless leader of the Viltrumites, the character became a staple of online power scaling discussions, where fans rank fictional fighters. Short clips using his name and the idea of death as the ultimate counterargument spread through meme edits and comment replies. The joke works because it reduces a long argument to one absolute answer, and it remains popular in fandom debates where exaggerated confidence meets an even stronger character.