Lucky

1st-Level Feat

Repeatable: No   You have inexplicable luck that can kick in at just the right moment, granting you the following benefits:   Luck Points. You have a number of Luck Points equal to your Proficiency Bonus. You can spend the points on the benefits below, and you regain your expended Luck Points when you finish a Long Rest.
Advantage. Immediately after you roll a d20 for a d20 Test, you can spend 1 Luck Point to give yourself Advantage on the roll.
Disadvantage. When a creature rolls a d20 for an attack roll against you, you can spend 1 Luck Point to impose Disadvantage on that roll.