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.
Now, release my power!
!والآن، حرّر قوّتي
Los, entfessele meine Kraft.
¡Vamos, libera mi poder!
¡Vamos, libera mi poder!
Avanti, libera il mio potere.
Agora, libere o meu poder.
Ну же, высвободи
 мою силу!