Divine Rebuke

General Feat (Prerequisite: Level 4+)

You gain the following benefits:

Ability Score Increase. Increase your Intelligence, Wisdom, or Charisma score by 1, to a maximum of 20.

Radiant Retaliation. Once per long rest, when a creature you can see within 60 feet deals damage to you, you can use your reaction to unleash divine judgment upon them. That creature must make a Dexterity saving throw (DC = 8 + your proficiency bonus + INT/WIS/CHA modifier your choice). On a failed save, the creature takes 2d10 radiant damage. On a success, the target takes half damage and is not marked.

If the target is a fiend or undead, it takes an additional 1d10 radiant damage regardless of the saving throw.

Burning Light. When you gain this feat, choose radiant or fire damage. When you deal damage of the chosen type, you ignore resistance to that damage. If a creature is immune to the chosen damage type, it instead takes damage as though it had resistance.

"Turns out, holy fire’s even hotter than the regular kind."

~Kara Fireheart, wiping soot off her armor