This giant ox was a summon of Pain.
Appearance []
With an appearance similar to a normal ox, this summon has a number of black receivers stuck on its head and legs, along with Rinnegan, implying it was being controlled by Pain. Its entire body was also covered in brown fur and it has black horns. It also has a small tail.
Abilities []
This summon, by its sheer size, possessed a great deal of brute strength. Also, because it has Rinnegan eyes, it possessed a field of shared vision with Nagato.
Part II []
Tale of Jiraiya the Gallant []
It was first summoned during Pain's fight with Jiraiya, where it charged at Jiraiya, forcing him into some sewers. Once Jiraiya entered Sage Mode, however, he easily repelled it and sent it flying while its left horn was snapped off. After this Nagato desummoned it.
Pain's Assault []
It was summoned again during Pain's attack on Konoha, where it was badly damaged by Naruto's Sage Art: Big Ball Rasengan and subsequently killed by Gamahiro.