Way of Celerity

Monks who train in the Way of Celerity learn to move with incredible skill. They effortlessly travel around the battlefield, hindering enemies and helping friends as they go. They are known for appearing, as with supernatural speed, at one point in a battle and then briskly leaving, going to fight in another. 

The design philosophy behind this subclass is to encourage the monk to move around and hit multiple opponents each turn. This is achieved by allowing this tradition of monk to inflict a condition called ki-blocked on any creature it hits and by allowing the monk to move with provoking oppurtunity attacks.

Free Feet

Starting at 3rd level, you no longer provoke opportunity attacks when leaving an enemy's range, while you are not wearing armor or wielding a shield.

Ki-Blocked

Starting at 3rd level, you can use your attacks to interfere with the natural energies of living things. When you hit a creature with an unarmed strike or with an attack using a monk weapon, you can choose to give the creature the ki-blocked condition. The ki-blocked condition last until the end of the creature's next turn. The effects a creature receives from the ki-blocked condition is dependent on the monk who gave the effect. A creature can only be affected by a single ki-blocked condition.

Ki-Blocked Movement

Starting at 3rd level, creatures who have the ki-blocked condition from you, who wish to move on their turn must make a constitution saving throw with a DC equal to your ki save DC. If they fail the check, their speed is reduced to zero for their turn. Due to their different anatomy, creatures who are non-humanoid have advantage on the saving throw.

Light Feet

Starting at 6th level, you can spend a ki point to reroll a Dexterity (Stealth) check.

Quick Feet

Starting at 6th level, when you hit a creature with an unarmed strike or with an attack using a monk weapon and you are not wearing armor or wielding a shield, you gain an additional 5ft of movement for that turn. You can only gain the additional movement from a specific creature once per turn.

Ki-Blocked Reaction

Starting at 6th level, creatures who have the ki-blocked condition from you, who wish to take a reaction must make a constitution saving throw with a DC equal to your ki save DC. If they fail the check, they cannot use their reaction. Due to their different anatomy, creatures who are non-humanoid have advantage on the saving throw.

Ki-Blocked Defense

Starting at 11th level, the first creature, besides yourself, to attack a creature who has the ki-blocked condition from you has advantage to hit.

Ki-Blocked Constitution

Starting at 11th level, when a creature who has the ki-blocked condition from you succeeds on a constitution saving throw, you can spend 1 ki point and use your reaction to make the creature reroll. 

Ki-Blocked Saving Throws

Starting at 17th level, when a creature who has the ki-blocked condition from you succeeds on any saving throw, you can spend 3 ki points and use your reaction to make the creature reroll.