Minor Portent (Tarokka)

Glimpses of the future begin to press in on your awareness. When you finish a long rest, you can perform a tarokka reading. Roll a d20 and record the number rolled. You can replace any attack roll, saving throw, or ability check made by you or a creature that you can see with one of these foretelling rolls. You must choose to do so before the roll. Each foretelling roll can be used only once. When you finish a long rest, you lose any unused foretelling rolls.