Infernal Luck

You gain 1 luck point.

You can expend 1 luck point to call on your patron to alter fate in your favor. Whenever you make an attack roll, ability check, or saving throw, you may roll an additional d20. You can use this ability after the original roll, but before the outcome is revealed. You choose which of the d20s is used.

Once you use this feature, you can’t use it again until you finish a short or long rest.

"Much like a coin, fate can also be flipped."