Fortunate

You have amazing luck that knows when to appear.

You have 3 points of luck. When you make an ability check, saving throw or an attack roll, you can expend one luck point to roll another d20. You can choose to expend a luck point after you roll the ride, but before the outcome is determined. You can choose which of the two d20s is used for said ability check, saving throw or attack roll.

You can also choose to expend a luck point when an attack roll is made against you. You can choose which of the two d20s is used. The attacker's or yours.

If more than just one creature expends a luck point to change the outcome of a roll, the points cancel each other, and no more dice are rolled.

You regain your luck points after you have finished a long rest.