This is a Divine Smite gained–as a Paladin–by taking the Oath of Law.
"Securing the vicinity from chaos."
| Tier 1 | On a hit, you gain the effect of Aura of Protection until the end of your next turn. If you already have it, add half your proficiency bonus to its effect. |
| Tier 2 | You gain the effect even if you miss the attack. |
| Tier 3 | If an ally is hit within range of your Aura of Protection, you may as a reaction move adjacent to that ally, swap places, and take the hit instead. |