Twilight Assassin

Twilight Assassins or Twilight Guards are creatures from the Twilight Realm. They appear bigger and stronger than a normal Shadow Beast, but they never actually appear in The Legend of Zelda: Twilight Princess, but they do appear in the trailer. The Twilight Assassins would be the same as the Shadow beasts except that it's bigger, it has a different face, in the shape of a gear. and it wears a small cloak around its shoulders.