Way of the Fractured Spirit

Monks of the Fractured Spirit have not found inner peace, nor tranquility. These Monks are not naturally occurring, only resulting from a Monk who has, through one way or another, been broken. They lost a portion of their own essence, but have gained the ability to find a way to avoid the magic of those opposing them. These Monks, while far from stable, are a dangerous and unpredictable foe, able to shrug off spells that would down the mightiest of foes.

Shattered Psyche

Starting at 11th level, your mind has been shattered in a way to prevent certain magics from affecting you. As a reaction, you can spend two key points to be immune to one of the following effects: [Deafened], [Blinded], [Stunned], or [incapacitated] until your next turn. You may only select one of these per reactions. You are also immune to the [Frightened] and [Charmed].

Shared Chaos

At 6th level, you may spend a ki point on a hit to inflict madness on an opponent against your ki save. On their next turn, they must make one attack against one of their allies of your choice. At the end of their turn, they spontaneously begin to cry, even if they are not physically able to do so, giving them disadvantage on wisdom saves for one minute.

Paranoid

Whispers from separate versions of your mind speak whispers to you. You cannot be lied to, and have advantage on dexterity ability checks and saving throwing. 

Strikes from Within

At 17th level, you can spend two ki points to make your attacks at a range of 60 feet, dealing an additional [roll]2d6[/roll] psychic damage. That target must make a wisdom saving throw against your ki save DC,  and on a fail is [Poisoned], taking an additional 2d6 Psychic damage on each subsequent attack for the next minute. On a success, the target gains advantage against all saves against you for a day.