Monks of the Way of the rolling river have trained to master the movements and power of the river.  The relationship these monks have with rivers is one of true appreciation, some monasteries not even having a head, but instead following the river as their guide.  as is expected many differences occur from group to group within this tradition, each group following a different river and reach river is different, some prefer a calm life while others rush each day to match their respective rivers. 

"dynamic blows"

when you take the attack action to do an unarmed strike on your turn you can choose the damage type between Bludioning Piercing or Slashing.  Each attack you take can be a different type.

Flow To Me

additionally at third level, You may use a ki point to cast the shape water cantrip or 2 ki points to cast create or destroy water as if it was a first level spell (at fifth lever you may upcast to second level and at tenth level as if it were a third level spell) though destroying water is looked down upon by most monks of this tradition

Rivers Grace

Starting at 6th level you gain proficiency in acrobatics and performance, if you already have either of these proficiencies either double your proficiency with that skill OR take half proficiency with a skill of your choice.

Flowing Stance

Additionally when reaching 6ht level you learn how to move like the flowing river.  When inititive is rolled you may add your martial arts die to the total, aditionally when you use step of the wind you can add a roll of your martial arts die to your armor class until the beginning of your next turn you can use this an amount of times equal to your proficency bonus per long rest

Flooding Power

starting at eleventh level when a creature misses you with an attack you can force that creature to make a dextarity saving throw, if they fail the creature will take two rolls of your martial arts die cold damage and they are forced 10(ten) feet away from you, if they savethey take half damage and are not pushed away

Aspect Of Rolling Rivers

starting at eleventh level you have gained many attributes of the water, you gain a swimming speed equal to your walking speed, you are unaffected by extreme temperatures as defined in "the dungeon masters guide" Also starting at eleventh level cold damage is added to the damage types available for your unarmed strike

Rivers Raging Revenge

Starting at seventeenth level you have learned how to harness the power or a river raging in a storm.
you may use a bonus action to enter a state of unparalleled intensity, You can take the dash action for free on your turn an amount of times equal to half your proficiency bonus (rounded up). You gain resistance to cold damage. while in this state you you can take your bonus action to disengage without using a ki point.
Finally While in this state once per day you can release a monsoon from inside you, anyone in range makes a dexterity save against your ki save DC dealing four rolls of your martial arts die in a 20 foot cone in front of you or half as much on a failed save