Fae Knight: Quickling

Fae knights are warriors blessed or cursed by a particular group of fey creature.  This boon grants supernatural powers, but always comes with a price.

Fae knights that receive the gift of a quickling gain the creature's incredible speed.  In return, the quickling demands that the knight spread fear and terror.

Fey-Touched

At 3rd level, you learn the Sylvan language.  You have advantage on Intelligence checks to recall information about Fey.  Fey creatures recognize that you have been touched by one of their own, giving you advantage on Charisma checks when dealing with them.

Hasty

Starting at 3rd level, you gain a quickling's blazing speed.  Your movement speed increases by 5 feet.

You can take one additional action on your turn.  That action can be used only to take the Attack (one light melee weapon attack only), Dash, Disengage, Hide, or [Tooltip Not Found] action.  You can use this feature three times, and you regain any expended uses when you finish a short or long rest.

If you are affected by the Haste spell, you do not suffer a wave of lethargy when it ends.

Evasive Speed

At 7th level, you are so fast that you can escape the worst of many attacks. Your movement speed increases by 5 feet, and you gain proficiency in Dexterity saving throws.

Artful Dodger

At 10th level, you laugh as you sprint past your hapless foes. Your movement speed increases by 5 feet, and opportunity attacks against you are made at disadvantage.

Lightning-Fast Killer

Beginning at 15th level, when you kill or reduce a creature to 0 hit points, you gain a burst of speed.  Until the end of your next turn, your speed is doubled, you gain a +2 bonus to AC, you have advantage on Dexterity saving throws, and you can take one additional action immediately and one more on your next turn. That action can be used only to take the Attack (one light melee weapon attack only), Dash, Disengage, Hide, or [Tooltip Not Found] action.

In addition, your speed increases by 5 feet, and you cannot be magically slowed.

Constant Blur

At 18th level, you are exceptionally difficult to hit when you move.  If you move at least 10 feet, until the start of your next turn, roll a d10 whenever an attack hits you.  If you roll a 10, the attack instead misses due to your speed.