You have inexplicable luck that seems to kick in at just the right moment. You have 2 luck points. As a reaction, which you take when you make an attack roll, an ability check, or a saving throw, you can spend one luck point to twist fate. Roll a 1d4 and apply the number rolled as a bonus or penalty (your choice) to the roll. You can do so after the roll but before any effects of the roll occur.
You regain your expended luck points when you finish a short or long rest.
You can select this feat multiple times. Each time you do so, you gain two additional luck points.