At the climax of the battle, both Itachi and Sasuke run out of chakra. However, Sasuke reveals that his actions up until now were only a preparation for his final jutsu.
It's called the Yata Mirror and
is said to deflect all things.
تُدعى مرآة ياتا وقيل أنّها تعكس كلّ شيء
Зеркала Ято, способное отразить что угодно.