Fragment-Touched

General feat (Prerequisite: level 4+) — Campaign homebrew for Heretics of the Old Gods

A Fragment of Possibility brushed against you once and never fully let go. Probability bends a little where you stand — and something on the other side takes notice. You gain the following benefits:

• Ability Score Increase. Increase one ability score of your choice by 1, to a maximum of 20.
• Possibility Dice. You have a pool of Possibility dice, which are d6s. The number of dice equals your proficiency bonus. You regain all expended dice when you finish a Long Rest.
• Bend the Odds. Immediately after you or a creature you can see within 30 feet makes a d20 Test (an attack roll, ability check, or saving throw), you can expend one Possibility die and add it to, or subtract it from, the roll. You do this after the die is rolled but before the DM says whether the roll succeeds or fails. When you use this benefit, the DM gains one Fear token.
• Locked In. A Fear token generated by Bend the Odds cannot be spent against the same d20 Test that generated it. Your result stands; the consequence comes later.