Arena Expert

When you choose this archetype at 3rd level, you gain proficiency in one of the following skills of your choice: Acrobatics, Animal Handling, Insight, Intimidation, or Performance.

Fight to Win

Starting at 3rd level, you have learned to fight up close and personal, finding any opportunity to strike. You can use your bonus action to attempt to grapple or shove a creature.

Spectacle Fighter

Starting at 7th level, you have mastered the use of brawn to awe spectators and to intimidate your foes. Whenever you make a Charisma (Intimidation) or Charisma (Performance) check, you gain a bonus to the check equal to your Strength modifier.

In addition, you gain advantage on saving throws against being frightened.

You're Next

Starting at 10th level, you can make an example out of your victims in order to demoralize your enemies. When you make a melee weapon attack against a creature, if you score a critical hit or reduce the creature to 0 hit points, you can force each creature of your choice within 30 feet of the victim to make a Wisdom saving throw (DC 8 + your Charisma modifer + your proficiency bonus). On a failed save, a creature is frightened of you for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Once you use this feature, you must finish a short or long rest before you can use it again.

Cull the Weak

Starting at 15th level, you are immune to being frightened, and you have advantage on attack rolls against creatures that are frightened.

Arena Champion

Starting at 18th level, you can grapple or shove creatures that are no more than two sizes larger than you.