By extensive training, the Zoomer can quickly dash through the battlefield, disorienting and damaging your enemies in a flash.

Speed Boost

Starting at 3rd level, your movements become a blur to the enemy. Your movement speed is increased by 15.
Additionally, you have advantage on Acrobatics and Athletics ability checks.

Speed of Thunder

At 3rd level, when you Dash using your Cunning Action, you can deal 1d4 bludgeoning damage to an enemy you can reach within 5 ft of you. Attacks of Opportunity made against you when you dash are made with disadvantage.

Slashing Wind

At 9th level, your Speed Boost movement increase is increased by further 15 ft and the damage of Speed of Thunder is increased by an extra 1d4.
When you hit an enemy the same turn you Dash with a melee weapon attack, you can add your Sneak Attack damage to the roll.

Fast Attacks

At 13th level, you can attack twice instead of once, whenever you take the attack action in your turn.
Also, when you Dash using your Cunning Action and move at least 20 ft in a straigth line, you may make one additional melee attack against one target within range.

Speed Aura

At 17th level, your Speed Boost movement increase is increased by further 20 ft and the damage of Speed of Thunder is increased by an extra 1d4.
And you exhale an aura which also boosts your allies' movement. Whenever you move, your allies within 15 ft of your can use their reaction to move up to double their speed, as long as they are inside the aura.