Put it at the end of the build-up, just before the reveal lands, then follow it with a bass drop once the new world is shown, letting it stay the turning point of the scene.
Über diesen Sound
Magia Profunda is a six-second clip centred on a deep, magical moment, with a slow, swelling sound that feels larger than the scene around it. It gives listeners a hushed, spellbound feeling, as if something unseen has just begun to stir. The effect lands best when the listener already senses that a change is coming.