Place it at the exact beat where a character fires, after a gun reload to build the shot and before a Darth Vader No for the defeated reaction. That order turns the shot into a tiny scene, with the reload setting it up and the villain's protest closing it.
About this sound
This is a single laser-gun blast from Star Wars, lasting just over a second, with a snapping metallic crack followed by a bright, ringing zap. It feels instantly playful and over-the-top, turning an ordinary cut into a mock space battle. The effect comes from the Star Wars films, where it became the signature sound for stormtrooper weapons and on-screen laser fire.