The Sharingan Revived: Dragon-Flame Jutsu!

is episode 30 of the original Naruto anime.

Synopsis
Sasuke and Shiore engage in combat, the fight appearing to have ended when Sasuke incinerated his opponent. However, the ninja somehow survives the attack with his face partially melted off, revealed to be a mask hiding the true identity of Team 7's attacker: Orochimaru. Revealing that he was only testing the youth and is glad that he lived to his expectations, Orochimaru extends his neck to bite Sasuke's, planting a cursed seal on him before taking his leave. Having found the remains of the real Shiore and his group, Anko finds Orochimaru and attacks him with intent on kill her former sensei for his crimes by any means. However, Orochimaru escapes.

ru:Проснись, шаринган! Последний ход - Стихия Огня: техника Огня Дракона!