Killing intent (Earth-2356)

Killing intent is simply the act of a Force-sensitive, typically tapping into the dark side of the Force, exuding pure killing intention, and having it affect their opponent, themselves, and others around them, up to the point of paralysing them with fear.

When the killing intent is particularly strong, it can even give the victim visions of their own gruesome death. This can cause killing intent to be confused with an illusionary technique, despite it not being a Force technique at all.

Source

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