The Monkey King himself, Sun Wukong has taken an interest in you for one reason or another. Mayhaps it's your foolish silly nature, or maybe it's your honorable courageous spirit, either way he's taken interest in you and is willing to teach you his ways of the Staff and maybe a bit of trickery along the way.

Lv. 3: 1,000 Hairs

As an action you can spend 2 Ki points to cast the Mirror Image  or Blur Spell. When either the illusion is struck or when Concentration is lost, the illusion will dissipate into a puff of cloud-like smoke.

Lv 17: Spirit Walker

As an Action you can spend 5 Ki points to transport yourself to the Spirit Realm, doing so brings any/all equipment you're carrying. When within the Spirit Realm you cannot see, speak to, or hear any creatures on the Material Plane whether friendly or enemy, you cannot interact with the Material Plane in any way, and you are able to pass through others.

Lv 11: Cloud Jumper

As a Bonus Action you can spend 3 Ki points to summon a cloud beneath your feet. This cloud has a flying speed of 50 feet, and has 5 HP. This cloud can be dispersed at any time using a Bonus Action. You can also hide in this cloud.

Lv 6: Ryui Jingu Bang

You can spend 2 Ki points to extend the range of your Quarterstaff to give it +5 Reach or Spend 4 Ki points to give it +10 Reach.