Place it at the end of a setup, just before the reveal lands, after building tension with Sudden Suspense. Follow it with Sad Violin to turn the blackout into a joke instead of a scare.
Über diesen Sound
This is a very short voice clip, just over a second long, built around a single dramatic shout of the word Darkness. The delivery is abrupt, landing like a cue for something ominous or absurd to happen next. It feels theatrical and darkly funny, perfect for a blackout moment that is meant to be dramatic rather than genuinely scary.