Kitsune Hibi

Your Kitsuhibi tattoos lets you use your body's on natural life energy and vitality to give you nigh superhuman abilities. When you enter your Hibi form, your blood starts to boil and seethe and your Ki starts manifesting into a flaming red aura coating your body.
As a bonus action, you can enter you Hibi form or increase it to a higher form, which lasts for one minute.

Hibi Form 1

A barely visible flaming aura coats your body and your tattoos become darker. When in Hibi form 1 you gain +1 to attack and damage roles and a +2 bonus to AC. You can use this a number of times a day equal to half your level rounded up (minimum 1), before taking a long rest.

Hibi Form 2

The flaming aura coating your body intensifies, its more visible now and surges more often, your tattoos darken even more and your skin becomes more flush.
When in Hibi form 2, you gain all the bonuses of previous hibi forms. Additionally, for the duration of the form, you are underneath the effects of he Haste spell. You also regain Ki points equal to you constitution modifier.
You can use this ability once, before taking a long rest.

Hibi Form 3

Your flaming aura now swirls around you more intensely, your skin turns a visible red hue and your tattoo's outlines now shimmer.
When in Hibi form 3, you gain all the bonuses of the previous hibi forms. Additionally, for the duration of the form, you gain the following benefits:

You gain resistance to bludgeoning, piercing, and slashing damage.

You gain a +1 bonus to all your saving throws. 

Your movement speed increases by 10ft

You can use this feature once before taking a long rest.

Improved Hibi Form 1

You've learned how to master your first hibi form. When you enter Hibi Form 1, the bonus you receive to your attack and damage rolls increases to +2.