Shadow

You can spend one Ki point to cast the spell Darkness without expending a spell slot or material components. You can see within the area of Darkness and can move the area of Darkness up to 60 ft from you per turn.

You gain Darkvision 60 ft. If you have Darkvision your range increases to 120 ft.

You know the Minor Illusion cantrip and use your WIS score for your spellcasting ability.

You imbue your unarmed strikes with negative energy from the Shadowfell. Your critical hit range becomes 19-20.

The first hit each turn deals Necrotic damage equal to half your Monk level rounded down or equal to your Monk level on a critical hit.

You gain the ability to step from one shadow into another. When you are in Dim Light or Darkness, as a bonus action you can teleport up to 60 ft to an unoccupied space you can see that is also in Dim Light or Darkness. You then have advantage on the first melee attack you make before the end of the turn.

Your connection with the Shadowfell improves your Shadow Step. When you use your Shadow Step, you can expend one Ki point to remove the requirement that it needs to be in Dim Light or Darkness. As part of the bonus action you can make an unarmed strike after teleporting.

You become Invisible.

You become partially incorporeal. You can move through occupied spaces as if they are Difficult Terrain. If you end your turn in an occupied space you are shunted into the nearest unoccupied space.

You can use your Flurry of Blows without expending Ki points.