Path of Discipline

You use discipline to overcome your blind, uncontrollable rage. With meditation, training, focus, and learning you attempt to achieve this goal. You learn how to maintain focus and skill while raging and eventually become a skilled fighter even while you are not raging. Perhaps you come from a barbaric tribe that has been conquered by and incorporated into a civilized nation. Maybe you are the offspring of a tribal leader just trying to be better than them when it's your time to lead and usher your people into a better way of life. You could have let your rage consume you in the past and hurt someone by accident, now your guilt fuels you to make sure it never happens again. Hey, maybe you just think barbarians are one dimensional and want to also maintain spells, it's all good. Whatever your reasons, you spent countless time every day honing your mind and body to be the best version of yourself while maintaining a cool head...but still, sometimes we all need to cut loose and RAGE!

Education

The best way to improve yourself is by getting an education. You learn a skill at levels 3, 6, 10, and 14 in this class gaining proficiency in a skill of your choice. Starting at level 3, you can choose Acrobatics, Animal Handling, Athletics, History, Medicine, Nature, Religion, or Survival. Starting at level 6, as you gain enough control over your rage you can now choose Arcana if you wish. 

Acrobatics

You gain proficiency in Acrobatics

Animal Handling

You gain proficiency in Animal Handling

Arcana

You gain proficiency in Arcana

Athletics

You gain proficiency in Athletics

History

You gain proficiency in History

Medicine

You gain proficiency in Medicine

Nature

You gain proficiency in Nature

Religion

You gain proficiency in Religion

Survival

You gain proficiency in Survival

Combat Training

Your training over the years has paid off in a big way and you learn to strike with purpose so that you land more deadly blows. Starting at 3rd level, when you make a melee attack roll that isn’t Reckless, it becomes critical hit on a 19 as well as 20. Likewise you learn to make an opportunity out of taking damage. When you get hit with a melee attack you can use your reaction to attack the creature that hit you. You can do this Strategic Opportunity Attack a number of times per day equal to your proficiency bonus.

Meditative Concentration

At 6th level, you learn to see through the blinding rage and can now concentrate on spells while raging. You also add your wisdom modifier to your unarmored defense.

Calm Focus

As you learn to keep calm in combat your focus, instead of your rage, enhances your battle prowess. Starting at 10th level, when you are not raging, you add your wisdom modifier to your attack and damage rolls for strength attacks. You also gain the ability to focus your rage into a small burst of adrenaline allowing you to spend one use of rage, as a reaction, to automatically succeed a saving throw. You may choose to use this feature after you roll. 

Superior Combat Training

At 14th level, you have surpassed your teachers in deadly precision. You now score a critical hit on 18-20 while not using Reckless Attack. Also, when you use your Strategic Opportunity Attack, you may spend a use of Rage to automatically make it a critical hit.