Itachi's Mangekyou Sharingan posesses two abilities that are distinct from one another. The first is the Amaterasu, an inextinguishable black flame that burns for seven days. When Itachi makes eye ...

So Itachi uses this chance to plant one of his greatest weapons inside Naruto: Shishui’s Mangekyo Sharingan. After accomplishing his objective, Itachi leaves Naruto lying helpless on the ground.