The Windwalker ranger specializes in aerial combat and manipulating the wind to help change the flow of battle. They gain increased movement speed and flow like the wind in and out of combat, as well as many other new features.

Breezestep

Starting when you pick this subclass at third level, your steps feel airy and light. Your weight is reduced by 1/6th and your movement speed increases by 15 ft.

you gain proficiency with light armor.

Flow of Akadi

When you are subjected to an effect, such as a red dragon’s fiery breath or a lightning bolt spell, that allows you to make a Dexterity saving throw to take only half damage, you instead take no damage if you succeed on the saving throw, and only half damage if you fail. 

Additionally, you gain a following feature of your choice.

Opportunistic Dash

Opportunity Attacks you make no longer use your reaction.

Wind Flurry

You can cast the spell Gust as a bonus action. Gust doesn't count towards your total amount of cantrips known.

Windswept Strike

Whenever you hit an enemy with a ranged weapon attack, they must succeed a DC10 strength save or be knocked 5 feet away from you. This distance increases to 10 feet against small creatures, and 15 feet against tiny creatures.

You gain expertise with ranged attacks.

Zephyr

You can momentarily shift into wind to avoid obstacles and get through spaces. Moving through the space of any creature no longer takes extra movement. Opportunity attacks made against you have disadvantage and you gain advantage on saving throws against spells that reduce your movement speed.

You can squeeze into spaces two sizes smaller than you.

Unshackled

At 15th level, you gain the ability to move along vertical surfaces and across liquids on Your Turn without Falling during the move. You can use an action to become weightless, which forms a silvery mist around you, granting immunity to falling damage and doubling your movement speed for your turn. You gain immunity to the Exhaustion condition.