Emissary of Redemption

At 20th level, you become an avatar of peace, which gives you two benefits:

• You have resistance to all damage dealt by other creatures (their attacks, spells, and other effects).
• Whenever a creature hits you with an attack, it takes Radiant damage equal to half the damage you take from the attack.

If you attack a creature, cast a spell on it, or deal damage to it by any means but this feature, neither benefit works against that creature until you finish a long rest.