For some barbarians, rage is a means to an end – that end being violence. The Path of the Berserker is a path of untrammeled fury, slick with blood. As you enter the berserker's rage, you thrill in the chaos of battle, heedless of your own health or well-being.
At 3rd level, you can go into a frenzy in battle. If you use reckless attack while your rage is active, you deal extra damage to the first target you hit. The extra damage equals a roll of a number of d6's equal to your rage damage bonus.
At 6th level, you have immunity to the charmed and rage conditions while your rage is active. If you have the conditions when you enter rage, the conditions end on you.
At 10th level, when you take damage from a creature within your reach, you can use your reaction to make one melee attack against that creature.
At 14th level, you can use a reaction to look into a creatures eyes and strike fear into their hearts. When you are hit with an attack, you can use your reaction to make them miss instead. This can only be used once per rage.