Path of the Dwarven Defender

Defenders are warriors who realize that it takes as much strength to thwart a blow as it does to deliver one. As the name might imply, this character is a skilled combatant trained in the arts of defense. A line of dwarven defenders is a far better defense than a 10-foot-thick wall of stone, and much more dangerous.

Shielded Rage

Starting when you choose this path at 3rd level, your rage continues if you are attacked even if you take no damage from the attack.  You rage will still end if you are knocked unconscious or the duration of a minute expires.

Shield Striker

Beginning at 3rd level, you learn how to use a shield to do more than just block attacks.  In your hands a shield is a weapon, dealing 1d6 + Strength modifier bludgeoning damage. You are considered proficient with attacks made using a shield, and you can now don or doff a shield as a bonus action.  

Additionally, when you take the Attack action or Dodge action during your turn, you can use a bonus action to make a separate melee attack using a shield you are wielding.

Shield Specialist

Beginning at 6th level, while you are wielding a shield damage you receive, except psychic damage, is reduced by 3. For you, shields gain the thrown property, with a range of 20 ft. / 40 ft.

Additionally, if you are raging and another creature you can see takes damage, you can use your reaction to hurl your shield in an attempt to foil the attack.  If the thrown shield hits, the attacker's damage is reduced  by 2d6. When you reach 10th level you can reduce the damage by 3d6 and by 4d6 at 14th level.

Iron Will

At 10th level, your mind is toughens to match your skin's resilience. You gain proficiency in Wisdom saving throws.

While raging, your inner fury burns those who try to invade your mind.  Whenever you succeed on a Wisdom saving throw against a charm, mind controlling effect or psychic damage, the source of the effect suffers a backlash of Psychic damage equal to a number of d6's equal to your rage damage bonus.  You add your Charisma modifier to this damage.

Fortitude of Stone

Starting at 14th level, you are a dominating presence on the battlefield. You are a pillar of endurance, blows seeming to skip off you.  When you take damage, you can use your reaction to roll a d12. Add your Constitution modifier to the number rolled, and reduce the damage by that total. You may do this a number of times per long rest, equal to your Constitution modifier.