Matatabi (Ten Tailed Fox)

The Two-Tailed Monster Cat (ニ尾の化け猫, Nibi no Bakeneko) is a tailed beast that was formerly sealed within Yugito Nii of Kumogakure when she was two years old. It had been captured by Hidan and Kakuzu, then extracted and sealed by Akatsuki. After Akatsuki's fall, it fell into the hands of Ibitsu Uchiha who sealed it in Gedō Mazo.

Background
According to Madara Uchiha, the Two-Tails first came into being near the end of the waning days of the Sage of the Six Paths' life; to prevent its resurgence, the Sage split up the demon's chakra of the Ten-Tailed Beast into nine separate, monstrous constructs of living chakra, which would become known as the tailed beasts. Like the One-Tailed Shukaku, many people believed that the Two-Tails was once a human that turned into a living ghost (生霊, ikiryō). The Two-Tails eventually fell into the possession of Kumogakure and sealed into a two-years-old Yugito Nii. She was placed into a detestable training program in order to learn to control the Two-Tails' power. After Akatsuki fell, it became captured by Ibitsu Uchiha.

Appearance
The Two-Tails resembles a bakeneko covered in wild blue flames. Its eyes are like an odd-eyed cat, with a right yellow eye and a left green eye.

Abilities
As the Two-Tails' jinchūriki, the jinchūriki has the ability to transform into the monster cat, giving him or her access to its strength and its ability to breathe fireballs from its mouth without losing much control.