The sound is widely recognized by Dota 2 players as Shadow Fiend's ultimate ability, Requiem of Souls. In Russian-speaking communities, it is often labeled simply as the SF ult or ульт сфа. Because the ability is tied to one of the game's most iconic burst heroes, the audio spread through gameplay montages, streamer edits and meme clips. It remains popular because even a very short snippet instantly tells viewers that a huge fight, dangerous mistake or flashy outplay is about to happen.