As an action, make a weapon attack to distract the creature, giving your allies an opening.
On a hit, add the stamina die to the attack’s damage and make a Deception check opposed by the creature’s passive Insight or it is flat-footed to creatures other than you until the end of its next turn.
On a critical hit, add twice as much damage.
On a miss by 4 or less, add half as much damage.
You can increase the damage for each additional stamina die expended.