Catlike Reflex

Your experience in battle has prepared you for anything. Good preparation and muscle memory allow you to act swiftly during the heat of battle. 

• Increase your Dexterity score by 1, to a maximum of 20.
• You have Reflex Points, equal to half your proficiency bonus rounded down. A Reflex Point can be spent to make a reaction outside of your turn during combat. 
• 1 Reflex point can be spent in response to a trigger of some kind, which can occur on any initiative count other than your own.
• You regain your expended reflex points when you successfully complete a long rest.