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.
He purposely released
his Fire Style attack into the sky,
،حرّرَ هجمة عنصر النّار في السّماء عمداً
Er hat sein Feuerversteckjutsu dazu benutzt,
die Luft plötzlich zu erwärmen …
L'ha scagliata in cielo di proposito
Ele mirou o Estilo Fogo para o céu de propósito,
Он специально выстрелил техникой в небо,