Darkyubi is a Rank S Yo-kai of the Shady Tribe and the ultimate form of Kyubi.
Darkyubi is an enhanced Kyubi with a darker coloration. He is a silver fox with very long, dark purple claws. He has pale violet eyes and light blue facial markings. His inner-ear is dark indigo and grape. His wrist, lower body, tips of tail, fur around the neck, and ear-tips are dark grey. Attached to the fur of his neck are four thin, long curled strands of milk-blue. He is seen holding a bright violet and indigo flame, versus the red flames that normal Kyubi weilds.