The audio is identified in its file metadata as Gom Jabbar from Hans Zimmer's official soundtrack for Dune, while the Ranger Nat 20 title comes from how tabletop players have repurposed it. In Dungeons and Dragons, a natural 20 is the highest possible roll on a twenty-sided die and usually means a critical success. Pairing that moment with tense film music turns an ordinary dice roll into a dramatic highlight, which is why actual-play creators, streamers and soundboard users keep reaching for cinematic cues like this one for ranger attacks, saving throws and other decisive rolls.