Path of Blinding frenzy

The Path of Blinding Frenzy epitomizes the epitome of barbaric fury, where sight is surrendered to an all-consuming rage, both literally and figuratively.

Barbarians who walk this path unleash an unrelenting assault upon their foes, driven by an overwhelming frenzy that eclipses all reason. Through honed instincts and sheer force of will, they navigate the chaos of battle with blindsight, striking with unmatched ferocity and precision.
As they tap into their primal instincts, their fury intensifies, doubling their destructive capabilities and propelling them into a whirlwind of carnage. Yet, amidst the chaos, they find a resilience born of their relentless fury, shrugging off blows that would fell lesser warriors. In the heat of combat, they embody the relentless storm, their every strike a testament to the blinding power of their rage.

Frenzied Assault

Starting at 3rd level, when you enter a rage, you can choose to enter a Blinding Frenzy for 1 minute. While in a Blinding Frenzy, you gain the following benefits:

• Your rage damage bonus is doubled.
• You can make an additional attack as a bonus action after your Attack action on each of your turns.
• Should your rage end while you're in a frenzy, you'll be stunned for a round as you try to regain your bearings.

Once you use this feature, you can't use it again until you rage again, this ability can be used an amount of times equal to your proficiency bonus.

Blind Instincts

At 3rd level, your heightened senses in combat allow you to overcome your lack of sight. You gain blindsight with a range of 15 feet. While raging, this blindsight extends to 30 feet. 

Additionally, you gain proficiency in Wisdom saving throws.

Unrestrained Fury

Blind Reckoning

Beginning at 10th level, you can tap into your rage to strike with uncanny accuracy, even without sight. While raging, you have advantage on attack rolls against any creature within your blindsight range.

Additionally your senses have heightened to the point that while raging you have a 10ft tremor sense.

Berserker's Resilience

At 14th level, your fury grants you extraordinary resilience. While you are raging, you have immunity to your choice of nonmagical slashing, bludgeoning and piercing damage, additonally you resistance to all damage types except radiant, necrotic and force.

Additionally, if you are reduced to 0 hit points while raging and not incapacitated, you can make a Wisdom saving throw (DC 10 + half damage taken). On a success(or a natural 20), you drop to 1 hit point instead.