Akushigan

The 'Akushigan (悪死眼, Evil Death Eye, VIZ: Death's Evil Eye) is a dōjutsu kekkei genkai of the Kikuchi Clan. It is characterized by the triangle which surrounds the pupil. The dojutsu itself is known and equally feared for its ability to wreak destruction on those caught within its gaze.

Trivia

 * The Akushigan is based on the eye of.