Path of the Juggernaut

This subclass of barbarian focuses on using your movement speed each turn when you can. The idea behind the class is to gain momentum each turn, which you can then use to perform special maneuvers and added damage bonuses in some cases. The key to gaining momentum is in two ways:

1. Attacks of Opportunities made against only you 

2. Moving at least 10 feet per turn voluntarily 

These are the two ways to build momentum which are needed in order to perform special attacks/maneuvers. 

Momentum

Starting when you choose this path at 3rd level, you acquire one charge of momentum if you do either of the following while raging. You do not gain momentum charges if you are not raging:

1. Are hit by an attack of opportunity
2. Move at least 10 feet on your turn voluntarily

 

Per each of your turns, you can acquire a maximum 3 momentum charges from either of the two above conditions being met. You can hold a maximum of 5 momentum charges (until level 14 where it becomes a maximum of 7).  

At level 3, you have 5 special attacks to choose from. Each option takes a main action unless otherwise stated and the save DC for the attack is 8 + Your Strength Modifier + Proficiency Bonus.

Unbreakable Will

Beginning at 6th level, you can’t be frightened while raging. If you are frightened when you enter your rage, the effect is suspended for the duration of the rage.

Walking Absolute Unit

Once per short rest, you can embody your strongest form and push your body to absolute limit. As a bonus action, you can push your muscles to the brink of breaking and increase your AC by 10 until the end of your next turn.You must not be wearing armor in order to receive the benefit of this effect. 

Ultimate Force

Starting at 14th level, you have fully harnessed the power of a Juggernaut. You are truly an unstoppable force. Your maximum momentum charges increases to 7 and any momentum attack that requires you to make a ranged or melee attack roll is done at advantage.