Katana's Jinjuriki Forms

As the Jinjuriki of the Ten Tails, Katana is able to use certain abilities granted to them by his tailed beasts.

Initial Form
By simply tapping into their beast's chakra, a jinchūriki begins their initial transformation. They are surrounded by a layer of red, wispy chakra granting them enhanced strength, speed and healing. In this form, the Katana's body undergoes slight physical changes.

Version 2
Using the jinchūriki's body as a sort of endoskeleton, a dark red, nearly black layer of chakra envelops them. The physical manifestations of the corresponding beast that are vaguely present in Version 1 states become far clearer in Version 2, in a way fully reproducing the beast in miniature: muscle mass increases and beast-specific attributes such as shells and ears become clearly defined. Entering Version 2 creates a great deal of energy, producing craters beneath the jinchūriki and destroying any restraints that might have been placed upon them beforehand. Strength, speed, and chakra are once again increased beyond the levels of the previous forms, the shroud remains a reliable defence against attacks, and other features, such as chakra-arms, are still accessible. It is even possible for the jinchūriki to create chakra-bones around themselves: Katana forms a full skeletal structure in differing states of completeness all along his body that are attached to him by chakra-ligaments, but the bones serve no obvious purpose.

Tailed Beast Mode
Tailed Beast Mode is devastatingly powerful and poses an untold risk of collateral damage. By either subjugating their tailed beast or learning to work in unison with it, Katana manages to manifest the Juubi's Dragon Form that resembles larval form with Ten Tails. Each of its ten tails ended in dragon-like heads.