Aoda

is the personal summon of Sasuke Uchiha.

Abilities
As a snake, Aoda is extremely fast and nimble, successfully avoiding every attack while crawling through an entire army of enemies.

Personality
Unlike some of his previous snake predecessors, Aoda seems to be very mild mannered and respectful to his summoner, as shown when he addresses Sasuke Uchiha with the Sama Suffix

Ten-Tails Revival Arc
During the second day of the Fourth Shinobi World War, Aoda was summoned alongside Katsuyu and Gamakichi by Sasuke Uchiha. Aoda was used by Sasuke to take down the big clones of the Ten-Tails. While doing this, Sasuke utilized his Susanoo to use Blaze Release: Kagutsuchi on his Susanoo arrow, which he targeted the Ten-Tails with.