Kinshiki Ōtsutsuki (大筒木キンシキ, Ōtsutsuki Kinshiki) was a member of the Ōtsutsuki clan, who served as a retainer for his son Momoshiki.
Kinshiki was an extraordinarily powerful being who, alongside Momoshiki, was deemed a threat greater than Kaguya, the progenitor of chakra. He was capable of holding his own against multiple Kage-level opponents at the same time, and restraining a perfect jinchūriki. As an Ōtsutsuki, Kinshiki possessed extremely powerful chakra and was capable of flight. He showed the ability to absorb any kind of ninjutsu and transform the chakra into various red glowing ninja tools at will, which he was proficient with handling. He could also sense chakra, being able to locate fragments of Kaguya across countries.
Kinshiki possessed incredible strength and durability, as he could escape being confined and immobilised by two Kage. Sasuke attributed he was strengthening his muscles with some kind of jutsu. Despite being on the verge of death, he could cut down his own planet's God Tree with a single slash of his halberd. Kinshiki was proficient in close-range combat and showed deceptive speed, being able to fight on par with Sasuke.
Kinshiki possessed the Byakugan, granting him a near 360° field of x-ray vision (with the presumed exception of a small blind spot at the upper thoracic vertebrae), and the ability to see the chakra pathway system.