Jsk Way of the Eight Gates

''The Inner Eight Gates exist in order to limit the flow of ki within an individual's body. Ordinarily, individuals can use no more than a fraction of their body's full potential, which is the brain's way of protecting the individual from harming their body through overexertion. With training, individuals can learn to remove these natural limitations, referred to as "opening the gates". With each opened gate, individuals are given access to more and more of their body's ki, thus increasing their power.''

The First and Second Gate
At 3rd level, you learn how to open the first two of the Inner Eight Gates. When you take the Dodge action, you can also choose to open an inner gate, immediately gaining the benefits and drawbacks. An inner gate can only remain open for 1 minute, and once the effect ends you gain one level of exhaustion. Opening a greater gate while a lesser gate is open does not reset the duration of your open gate to 1 minute, but you keep all the benefits and drawbacks of a lesser gate when you open a greater one.

The Gate of Opening: Kaimon
You can only open this inner gate if you have no inner gates open. Located in the brain's left hemisphere, opening this gate removes the user's mental inhibitions.
 * You have advantage on Intelligence, Wisdom, and Charisma saving throws against spells.

The Gate of Healing: Kyūmon
You can only open this inner gate if you have the Gate of Opening open. Located in the brain's right hemisphere, opening this gate increases the user's physical strength.
 * Once per turn, you can choose to deal an additional 1d6 damage when you hit a creature with an unarmed attack or a Monk weapon.

The Third and Fourth Gate
At 6th level, you learn how to open another two of your Inner Eight Gates.

The Gate of Life: Seimon
You can only open this inner gate if you have the Gate of Healing open, or no gates open. Located at the top of the spinal cord, opening this gate turns the user's skin red.
 * You regain one expended ki point at the start of each of your turns.
 * Upon opening this gate, you must expend and roll one of your Hit Die. You take necrotic damage equal to the result. This damage cannot be reduced or prevented by any means.

The Gate of Pain: Shōmon
You can only open this inner gate if you have the Gate of Life open. Located on the spinal cord between the shoulder blades, opening this gate causes the user to emit a faint aura of heat around their body.
 * Your first Attack each turn is made with advantage.
 * Upon opening this gate, you must expend and roll one of your Hit Die. You take necrotic damage equal to the result. This damage cannot be reduced or prevented by any means.

The Fifth and Sixth Gate
At 11th level, you learn how to open another two of your Inner Eight Gates. Opening these gates causes you to gain two levels of exhaustion when the effect ends, instead of one.

The Gate of Limit: Tomon
You can only open this inner gate if you have the Gate of Pain open, or no gates open. Located in the abdomen, opening this gate causes the user's hair to stand on end.
 * When you hit a target with an unarmed Attack, you can choose for the attack to be a guarenteed critical hit, but you take half of the damage you deal as necrotic damage. This necrotic damage cannot be reduced or prevented by any means.
 * Upon opening this gate, you must expend and roll two of your Hit Die. You take necrotic damage equal to the result. This damage cannot be reduced or prevented by any means.

The Gate of View: Keimon
You can only open this inner gate if you have the Gate of Limit open. Located in the stomach, the power that emanates from the user is enough to displace surrounding bodies of water.
 * You can use the Misty Step spell at will on each of your turns (no action required).
 * Upon opening this gate, you must expend and roll two of your Hit Die. You take necrotic damage equal to the result. This damage cannot be reduced or prevented by any means.

The Seventh and Eighth Gate
At 17th level, you learn how to open another two of your Inner Eight Gates. Opening these gates causes you to gain three levels of exhaustion when the effect ends, instead of one.

The Gate of Wonder: Kyōmon
You can only open this inner gate if you have the Gate of View open, or no gates open. Located below the stomach, opening this gate causes the user's body to secrete a turquoise-blue sweat. The sweat immediately evaporates, creating an aura around the user that can be mistaken for raw ki energy.
 * When you hit a target with an unarmed attack, the target of the attack is also affected by the Shatter spell. The DC for this saving throw is 20.
 * Upon opening this gate, you must expend and roll three of your Hit Die. You take necrotic damage equal to the result. This damage cannot be reduced or prevented by any means.

The Gate of Death: Shimon
You can only open this inner gate if you have the Gate of Wonder open. Located at the heart. While open, the user's heart pumps at maximum speed. A "Steam of Blood" is emitted from the user's pores and hair, resembling a flaming red aura. The eighth gate causes the body to continually heat up until it's been cooked from the inside-out, reducing the user to ash.
 * Upon opening this gate, you have 1 minute to live. After 1 minute has passed, you fall prone and become stunned, rapidly turning to ash over the next 10 or so seconds. This death cannot be prevented by any means, and you cannot be brought back to life with anything less than the Wish spell.
 * When you hit a target with an unarmed Attack, you can also choose for the target of the attack to be affected by the Power Word: Kill spell. Whether successful or not, using this ability immediately reduces the time you have left to live to 0 seconds.