Shadow Saberdart Technique (Earth-2356)

The user places two saberdarts together and throws them both at a target simultaneously; the larger the saberdart that are thrown, the greater the necessary skill. The goal is for targets to focus their attention on whichever of the two saberdart is on top, not noticing the second sabertdart travelling below it. Ideally, targets will dodge the upper saberdart in such a way that they are left unable to dodge the second. If targets do at any point realise there's a second saberdart, the technique is rendered ineffective.

Anakin Skywalker would sometimes disguise  himself or his shadow clones as saberdarts, which either he or an ally will throw as part of the Shadow Saberdart Technique. That way, in the event that targets dodge both saberdart, the shadow clone will be well-positioned for an attack.

Source

 * https://naruto.fandom.com/wiki/Shadow_Shuriken_Technique