It was not until Zetsu reported to Tobi that Sasuke had killed Itachi that they were able to continue their pursuit. He lamented on how he failed to protect Rin and soon found himself at a campfire with his deceased father, Sakumoto whom he tells his life story upon request from his father. He can combine his Summoning Technique and his Earth Release skills to have his hounds burrow and erupt from the ground in order to help subdue his enemies. Having expended the last of his chakra, Kakashi died, and his soul left his body. As the Third Hokage told Iruka, Kakashi had never passed any of them due to their inability to live up to his expectations of working as a team. Kakashi primarily relies on his mastery of ninjutsuof which he has a vast arsenal due to his Sharingan; being noted to have copied over a thousand techniques,  the number has continuously been growing through his many battles. Knowing his life was at an end, Obito instructed Rin to implant his left Sharingan into Kakashi's damaged eye.
Before setting out on his mission, Kakashi stops a battle between Naruto and Sasuke.
Repeatedly, Kakashi has shown himself to be a very shrewd and resourceful man. He had received top marks and had shown an innate aptitude for the ninja arts while in the Academy. Here, Kakashi used his Lightning Cutter to destroy several stone warriors. Kakashi was able to fight on even grounds in this battle, but noted that Itachi's performance wasn't what it was the last time they met.
Before Kakashi could land a killing blow, a boy named Haku stepped in, and appeared to kill Zabuza first.