Cunning tricks
Knockout Strike
You know how to strike subtly and exploit a foe’s distraction.
If you would have advantage on your attack against an enemy, you can as an action make a special attack against that creature with a light melee weapon that deals bludgeoning damage, a knockout strike:
Knockout Strike. You forgo the attack’s advantage to attempt to knock the target unconscious instead. On a hit, the target must succeed on a Constitution saving throw or become unconscious. The target has disadvantage on the saving throw if it is surprised and a creature automatically succeed on this saving throw if it is at least two sizes larger than you. The unconscious condition ends after 1 minute, if the creature takes damage, or another creature within 5 feet of the creature uses an action to wake the creature.
In addition, creatures that are immune to either the incapacitated, paralysed, or stunned condition are also immune to this special attack.