Place it at the reveal point, after the setup shot and before the closing reaction. Start with a quick Bruh for the failed attempt, let this clip carry the reveal, then close with Emotional Damage when the other person reacts.
About this sound
This is a nearly fourteen-second evil laugh that starts as a low chuckle and grows into a full theatrical cackle. The voice stays playful and cartoonish rather than frightening, giving listeners a mischievous, smug feeling like a plan has just succeeded. It spread as a standalone meme clip rather than from a famous film villain.