kitsune

A mystical shapeshifter in Japanese folklore whose normal form is that of a fox. Every 100 years, a kitsune will gain a new tail, up to nine at 800 years. These tails symbolize the amount of knowledge and magical power the kitsune has gained over its long life.

A kitsune with all nine tails would usually be classified as a kyuubi.

The following tags implicate this tag: kyuubi (learn more).