Piercer Feat

PIERCER

General Feat (Prerequisite: Level 4+)
You gain the following benefits.
Ability Score Increase. Increase your Strength or Dexterity by 1, to a maximum of 20.
Ability Increase. Increase your Strength or Dexterity Score by 1, to a maximum of 20.
Puncture. Once per turn, when you hit a creature with an attack that deals Piercing damage, you can reroll one of the attack’s damage dice, and you must use the new roll.
Enhanced Critical. When you score a Critical Hit that deals Piercing damage to a creature, you can roll one additional damage die when determining the extra Piercing damage the target takes.