Knight of the Crown

You are a Knight of Solamnia aligned with the Order of the Crown, a group that extols the virtues of cooperation, loyalty, and obedience. You excel in group combat and gain these benefits:

Ability Score Increase. Increase your Strength or Dexterity score by 1, to a maximum of 20. 

Tactical Teamwork. When a creature you can see within 30 feet of you makes an attack roll against another creature that is within 5 feet of you, you can use your reaction to grant advantage on this attack roll. You can use this reaction a number of times equal to your proficiency bonus, and regain all expended uses when you finish a long rest.