This is an Oath Smite gained, as a Paladin, by taking the Oath of Law.
"Hindering and stopping unlawful activity."
Tier 1 | On a hit, the target is restrained until the end of its next turn. Additionally, this attack is always non-lethal. |
Tier 2 | On a hit, the target is stunned until the end of its next turn. |
Tier 3 | The target is stunned until the end of your next turn. |