Portent

Passive Feature - BG3

Your dreams grant you glimpses that let you influence the future. After each Long Rest, you gain two random Portent Dice. During the day, you can use your reaction to change the die of any Attack Roll or Saving Throw rolled within 18 m of you to one of your Portent Dice. Each Portent Die can only be used once, and you lose your unused Portent Dice at the end of the day.