Way of Lightning

Monks of the Way of Lightning do not necessarily wield literal powers of electricity, but instead figuratively embody it through explosive speed. They hone all parts of their body to perfectly move as quickly as possible, not only can their legs carry them across deserts and above mountains in mere seconds, but they can throw out attacks at a nearly blinding pace. Their speed typically manifests due to some form of extraplanar power, perhaps it appears as streaks of lightning emerging from you, trails of fire from your feet, a beam of light from your back, sketches of yourself predetermining your actions, or maybe you really are just that fast.

Lightning Fast

When you choose this tradition at 3rd level you can use your Step of the Wind feature without expending a ki point. You can also choose to expend a ki point as part of your Step of the Wind feature to instead triple your movement speed and jump distance. At 11th level these instead become quadrupled. You can also make one unarmed strike each turn as a free action, increasing to two if you make four or more unarmed strikes in the turn you use this. This increases to two and four respectively at 11th level.

Momentum

When you reach 6th level, you learn to take advantage of the momentum gained from your speed. The damage of the first unarmed strike you make after moving in a straight line towards a creature is increased depending on how far you moved, 1d6 for 30 feet, 2d6 for 60 feet, 3d6 for 120, and 4d6 for 240, adding another 1d6 for every 1000 feet beyond that. You can also make three unarmed strikes instead of two when using your Flurry of Blows feature, this increases to four at 17th level. You can also choose to use an action and 2 ki points to continue building up your speed, but only if you moved in a straight line this turn. If you do this, your base movement speed becomes half of however far you moved this turn until the end of your next turn.

Speed Blitz

When you reach 11th level, your speed becomes nearly impossible to see. Whenever you move at least 240 feet in one round you become invisible until the start of your next turn. A creature with any sense beyond normal sight, such as truesight, blindsight, or tremorsense is still affected by this invisibility, but a creature with a passive perception 3 points higher than your dexterity score is not affected by this invisibility. You can also expend one ki point and a bonus action to reroll any ability check you make using dexterity after you roll but before you know the result.

Godspeed

When you reach 17th level, you have mastered the art of movement. You can use an action and expend 3 ki points to cast haste on yourself, without the need for verbal, somatic, or material components. Whenever you are under the effects of the haste spell you also gain an additional bonus action and an additional reaction, and can use an action to expend 4 ki points to cast freedom of movement on yourself without the need for verbal, somatic, or material components.