Susanoo: Barrier

Multiple Mangekyou Sharingan users can combine their chakra to form a combined armored Susanoo of great proportions, able to cover the entire area of an Uchiha headquarters. This combined chakra is able to help the Kage of the Uchiha Clan to use the Combined Chibaku Tensei along with the other Kage and protected the area from the massive gravitational pull of the jutsu.

While multiple users have a role in forming and sustaining their own Susanoo for the technique, the Kage seems to have direct control over the combined humanoid, able to create multiple ballista weapons and fire them on his own.