Improved Champion

A version of Champion focusing on improving the Fighter in a simplistic way in the same spirit as the official Champion but with more power, making the subclass more viable when compared to the top tier subclasses like Battlemaster.
Now featuring Third Wind, Bonus Action Surge and Superior Action surge!

Third Wind

Starting at 15th level, your well of stamina that you can draw from increases
You gain an additional use of Second Wind but you cannot use it more than once per turn.

Improved Critical

Beginning when you choose this archetype at 3rd level, your weapon attacks score a critical hit on a roll of 19 or 20.

Remarkable Athlete

Starting at 7th level, you gain half proficiency in every ability check that uses Strength, Dexterity or Constitution.

In addition, your walking speed increases by 5 feet when you make a running long jump, the distance you can cover increases by a number of feet equal to your Strength modifier.
You can choose to increase your Strength, Constitution or Dexterity score by 1.

Bonus Action Surge

Starting at 10th Level, you can push yourself even further beyond your normal limits for a moment. On Your Turn, you can take one additional Bonus Action on top of your regular Action and a possible Bonus Action.

Once you use this feature, you must finish a Short or Long Rest before you can use it again. Starting at 17th level, you can use it twice before a rest, but only once on the same turn.

Superior Critical

Starting at 15th level, your weapon attacks score a critical hit on a roll of 18–20.

Survivor

At 18th level, you attain the pinnacle of resilience in battle. At the start of each of your turns, you regain hit points equal to 5 + your Constitution modifier if you have no more than half of your hit points left. You don’t gain this benefit if you have 0 hit points.