As an action, you can make a weapon attack in an attempt to distract the creature, giving your allies an opening. Add the stamina die to the attack’s damage (add half if you miss by 4 or less). On a hit, make a Deception check opposed by the creature’s passive Insight or the next attack roll against it by an attacker other than you has advantage if the attack is made before the start of your next turn.
You can increase the damage for each additional stamina die expended.
You can expend 3 additional stamina dice to cause all attack rolls against the creature by an attacker other than you to have advantage.