There are whispers that in the deep jungles that a strange form of combat involving forming bones from ones own body.

Bone Weapons

At 3rd level you may use a bonus action to sprout a bone weapon attached to any part of your body. They count as unarmed strikes for damage purposes but otherwise may deal bludgeoning, piercing, or slashing damage. You may not create a weapon that would give the Reach ability. You may dismiss these weapons back into your body as a bonus action. At 6th level these weapons are considered magical for the purpose of overcoming resistance and immunity to non magical attacks and damage

Bone Shield

At 3rd level you may use a bonus action to expend 1 ki point to cause bone plates and
spikes to protrude from your skin. You gain a +2 bonus to ac and when a creature
makes a melee attack against you while this is active they take piercing or slashing
damage equal to your monk level. The damage from Bone Shield can only affect any
single creature once per round. This effect lasts for a number of rounds equal to your
wisdom modifier plus 1. At 6th level this damage is considered magical for the purpose
of overcoming resistance and immunity to non magical attacks and damage.

Shaper's Will

At 6th level you may expend 2 ki points as a action to cause your bones to manipulate into forms more suitable for enhanced movement. You may give yourself one of the following movement types for ten minutes.
Hooked limbs: You gain a climb speed equal to your base movement speed.
Bone fins: You gain a swim speed equal to your base movement speed.
Leg extensions: You gain +10ft to your base movement speed and your jump distance is doubled for the duration.
Burrowers claws: You gain a burrow speed equal to half your base movement speed.
At 11th level you may grow wings with this effect to gain a fly speed equal to your base movement speed.

Bone Fins

You gain a swim speed equal to your base movement speed.

Bone Wings

At 11th level you may grow wings with this effect to gain a fly speed equal to your base movement speed.

Digger's Claws

You gain a burrow speed equal to half your base movement speed.

Hooked Limbs

You gain a climb speed equal to your base movement speed.

Leg Extensions

 You gain +10ft to your base movement speed and your jump distance is doubled for the duration.

Spike Burst

At level 11, you may choose to expend 3 ki point to eject a hail of formed bones from
your skin at up to 4 creatures within 30 feet of you as an action. The targets must then
make a Dexterity saving throw (DC 8 + your proficiency bonus + your Dexterity
modifier)or take 8d6 magical piercing damage and be knocked prone on a failed saving
throw. On a success the target takes half as much damage and does not fall prone.

Calcifying Blow

At 17th level whenever you hit an opponent with an unarmed strike you may expend 4 ki
points to cast a modified *Flesh to stone* as a bonus action. The spellcasting ability for
this is Wisdom. If you hit an opponent currently making saving throws for this effect with
an unarmed attack they have disadvantage on their next saving throw against this
effect. Unlike a normal Flesh to Stone spell this effect causes their bones to rapidly
grow until their entire body is trapped in a bony shell.