Bane is the masked DC Comics villain brought to mainstream fame by Tom Hardy's portrayal in The Dark Knight Rises from 2012, famous for his deep, distorted voice. Speak of the devil is a classic English idiom said when someone appears just as they are being talked about, which makes it a natural fit for his menacing persona. Short villain voice lines like this spread widely as reaction memes and video inserts, and this one endures because it turns any surprise entrance into an instant cinematic moment.