Stunning Blow
Prerequisites Level 11 Vagabond
When you hit a creature with an attack using a weapon or Unarmed Strike, you can expend three Battle Dice as a Bonus Action to attempt to stun the target. Add the Battle Dice to the attack’s damage roll. The target must succeed on a Constitution saving throw or have the Stunned condition for 1 minute. At the end of each of its turns, the target repeats the save, ending the condition on itself on a success.
Sources
Valda’s Spire of Secrets Extras (2024)