Monks of the Way of the Cardinal Body learn to enhance their martial skill through the principles taught by the four Cardinal Bodies. These Cardinal Bodies are celestial entities that the monks of this practice revere as guardians of specific regions; The Jade Serpent of the East, the Red Crane of the South, the White Tiger of the West, and the Black Tortoise to North. By implementing the teachings of theses guardians, the monasteries that serve these celestial figures believe they can become well rounded spiritually and physically, bringing them closer on their journey to enlightenment. 

Cardinal Teachings

Starting at 3rd level, when you deal damage with an Attack using the Attack Action, you can spend 1 Ki point to immediately roll one Martial Arts die use the results for all of the following:

• Deal damage to your target for that amount.
• Heal one creature you can see within 30ft for that amount. 
• Grant yourself temporary hit points equal to that amount.
• Increase your movement by 5ft until the start of your next turn.

You can only use this feature once a turn. 

Blessings of the Cardinal Bodies

At 6th level, you gain enhancements to your Ki abilities as follows:

• When you use Flurry of Blows, if you miss with an unarmed strike, you can reroll the attack roll, but you must use the new roll. You can only use this once per turn.
• When you use Patient Defense, you can target one creature within 5ft of you, that creature has disadvantage on Attack Rolls against creatures other than you until the end of its next turn.
• When you use Step of the Wind, you can heal one creature you can see within 30ft using your martial arts die.
• When you use Stunning Strike, if the target succeeds on the Saving Throw, they instead will have disadvantage on their next Attack Roll against you.

Avatar of the Cardinal Body

At 11th level, as a bonus action you can spend 2 Ki points to manifest an Avatar of the Cardinal Bodies that takes the form of one of the four Cardinal Bodies and has unique benefits:

• The Jade Serpent - When you heal a creature with any of your monk features, your avatar heals one creature within 30ft of the avatar for the same amount.
• The White Tiger - You can add your Martial Arts die to the damage of one attack you make using the Attack Action.
• The Red Crane - When you stun a creature with Stunning Strike, you can immediately move 10ft without using your movement or provoking attacks of opportunity.
• The Black Tortoise - The first time you take damage on a round, you can roll you Martial Arts die and reduce the incoming damage by the results.

They have HP equal to your Monk level x 3, use your movement and AC, and can use the attack action using your martial arts die. They stay active for 1 minute and share your initiative.

You can only have one Avatar of the Cardinal Bodies active at one time. You can use this feature a number of times equal to your Proficiency Bonus per Long Rest.

True Cardinal Form

At 17th level, you are able to infuse your form with the Avatars of the Cardinal Bodies. When you use your Avatar of the Cardinal Bodies class feature and manifest an avatar, you can manifest a celestial armor of a different Cardinal Body, gaining both benefits at once.

Additionally, you now use the Avatar of the Cardinal Bodies feature as many times as you would like between Long Rests.