Rangers who emulate the archetypical Tempest hone their minds to be as sharp as their blades. As your abilities as a Tempest grow, you learn to transform your twin blades into a hurricane of steel. As your blades strike with ferocious speed, your newfound alacrity lets you zip to and fro’ like a hummingbird.
A Tempest is the point of calm within a whirling barrier of deadly blades. Poets use colorful terms such as “dancing” to describe movement of a Tempest and her two blades, but mastery of this fighting style is not about dancing, nor is it about impressing anyone– least of all poets. A Tempest focuses on learning the secrets of two-weapon fighting for a single purpose: the destruction of her enemies.
At 3rd level, you learn how to use a pair of blades with incredible speed. Once per turn, when you hit a creature with two or more melee weapon attacks while wielding two melee weapons, you can make another attack against that creature.
You may also cast spells that require somatic components even if you are holding a weapon in each hand.
At 7th level, your speed increases by 10 feet. You also learn how to strike and then slip away without reprisal.
During your turn, if you make a melee attack against a creature, that creature can’t make opportunity attacks against you for the rest of your turn.
Cascade of Steel
At 11th level, you can use your action to make melee attacks against any number of creatures in a 30 foot line. You make a separate attack roll for each target and may have to continue moving so that the targets are in reach.
During your turn, you have advantage on any checks to Overrun or Tumble through a hostile creature’s space.
At 15th level, you learn to focus on giving your preternatural speed a magical boost. You can cast the Haste spell once without using a spell slot, but only on yourself.
You regain the ability to cast it again in this way after you finish a short or long rest.