This sound comes from JoCat's Crap Guide to Paladin, part of his comedic series explaining Dungeons and Dragons classes through exaggerated jokes and memorable moments. In the guide, the paladin's Divine Smite is treated as the class's defining power move, the holy burst players save for a decisive blow. That association stuck with viewers, and the clip has since circulated on soundboards and in short-form edits as shorthand for a sudden, righteous hit. It remains popular because Dungeons and Dragons players instantly recognise the reference, even without any extra context.