Dragon Piercer

Some Barbarians try to focus and halter their rage. A fruitless task, as it may be, since their inner fury can never be quenched, some may learn to control it, gaining great concentration, perception and precision.

Barbarians who walk the path of the dragon piercer go against their basic instincts and learn to channel their rage into the use of bows, priding themselves in their accuracy and power. Some even being known to make dragons fall from the sky with a single arrow.

Arrow Fury

Starting when you choose this path at 3rd level, you can use longbows with Strength, adding your Strength ability score modifier to attack and damage rolls, any features you gain from the barbarian class that affect melee attacks can be used with ranged attacks when using a longbow with Strength. (reckless attacks can only be done at half the longbow's normal range)

Focused Rage

Beginning at 6th level, you gain advantage on making perception rolls that involve sight, and while raging, you can’t be  blinded.

Additionally, while raging your physical might allows you to make special attacks other could not make with a longbow.

These attacks spend your action, can only be done once a turn, and can be used a number of times equal to your Constitution modifier, the numbe of uses recharges on a long rest.
Their DC is 8 + your proficiency bonus + your Strength modifier, and the damage is the weapon damage + your Strength modifier + your Rage damage.

- Piercing arrow:
You pull the sting as much possible, allowing a single arrow to pierce multiple targets. chose a target in your normal range, the target and each creature in a 10ft long 5 ft wide line behind it must make a Dexterity saving throw,  A creature takes damage on a failed save, or half as much damage on a successful one.

- Splitting arrow:
You pull the sting as much possible, with 10 arrows on it, to make an attack to cover a area in front of you. Each creature in a 20ft cone must make a Dexterity saving throw,  A creature takes damage on a failed save, or half as much damage on a successful one.

- Rain of arrows:
You pull the sting as much possible, aiming 5 arrows towards the sky, to make a rain of arrows. Chose a point in half your normal range or less, each creature in a 10ft circle around that point must make a Dexterity saving throw,  A creature takes damage on a failed save, or half as much damage on a successful one.

Retalation

At 10th level, whenever you  or any allies in sight take damage from another creature, you can use your reaction to make a single ranged attack against that creature, as long as it is within your normal range.

Additionally, you gain expertise on perception and your piercing arrow, split arrow and rain of arrows all gain an extra 5ft range in their area of effect 

Devastating Arrows

Starting at 14th level, if you estar an encounter with zero charges to use your special ranged attacks, you gain a single charge of it.

Additionally, your special attacks gain extra effects.

If your piercing arrow hits only a single creature, it becomes a normal ranged attack, dealing extra weapon dice the larger the creature is:
large creatures take 1 extra weapon damage dice, huge creatures take 2 extra weapon damage dice and gargantuan creatures take 3 extra weapon damage dice

Split arrow pushes all creatures 5 ft backwards and halves their movements for their next turn.

Rain of arrows cause difficult terrain in the affected area. A creature moving in the area takes 1d4 for each 5ft it moves.