The Sanctuary Guardian first appeared in Dark Souls: Artorias of the Abyss, the expansion released in 2012 for the 2011 action role-playing game by FromSoftware. As the guardian of the Sanctuary in Oolacile, it serves as the expansion's opening boss, and its roars and attack sounds became familiar to players who replayed that difficult early fight. Clips from the encounter later circulated on soundboards and in gameplay videos, where editors reused the audio outside its original context as shorthand for a sudden, powerful threat. It remains useful because the sound is recognisable to Souls players without needing any dialogue.