The powers of fortune truly smile on you more than most mortals.
As long as you have at least one luck reroll remaining for the day, you gain a +2 luck bonus on whichever of your saves has the lowest base bonus. If two or more of your saves tie for the lowest base bonus, choose when you select this feat which save it applies to. If your base save bonuses later change so that the chosen save no longer has the lowest base bonus, the luck bonus from this feat immediately applies to the save that now has the lowest base bonus. You gain two luck rerolls per day.