This does , ironically , make Lucky potentially less helpful when rolling with disadvantage . which amuses me . Disclaimer The following is RAW . It ' s not how I run the game personally , and it ' s not how I recommend you run the game . It ' s simply the official , and irrefutably correct ruling . This is untrue , because specific overrides general , as confirmed by sage advice How does the Lucky feat interact with advantage and disadvantage ? The Lucky feat lets you spend a luck point roll an extra d 20 for an attack roll , ability check , or saving throw and then choose which d 20 to use . This is true no matter how many d 20 s are in the mix . For example , if you have disadvantage on your attack roll , you could spend a luck point , roll a third d 20 , and then decide which of the three dice to use . You still have disadvantage , since the feat doesn ' t say it gets rid of it , but you do get to pick the die . The Lucky feat is a great example of an exception to a general rule . The general rule I have in mind is the one that tells us how advantage and disadvantage work PH , 173 . The specific rule is the Lucky feat , and we know that a specific rule trumps a general rule if they conflict with each other PH , 7 . When you roll with disadvantage and use a luck point from the Lucky feat , you can pick which of the three dice to use . This is every bit as stupid as it sounds . If you absolutely need to make a ranged attack , for instance , you can use a luck point and roll two dice , picking the better roll effectively the same as having advantage . or you can impose disadvantage on yourself , then use a luck point and roll three dice , picking the best of the three effectively better than if you hadn ' t had disadvantage .