Path of the Unwilling Weapon

Barbarians who walk the Path of the Unwilling Weapon don't bother with works of wood and steel. Why swing a hammer when you can swing a goblin?

Level 3: Level 3: Innovative Brawler

When you make an Unarmed Strike or an attack with an Improvised Weapon, you may use a d6 for the damage die instead of the normal damage. This increases to a d8 at 5th level, a d10 at 11th level, and a d12 at 17th level. You also gain Proficiency with Improvised Weapons.

 

Level 3: Living Weapon

When you are Grappling a creature, you may use it as an Improvised Weapon. A Grappled Weapon deals Bludgeoning Damage, unless the DM decides another damage type is appropriate.
A Grappled Weapon that is larger than you has the Reach, Heavy, and Two-Handed properties, and deals one additional damage die.
A Grappled Weapon that is smaller than you has the Light property.

When you deal damage with a Grappled Weapon, you may choose to deal only half damage to the target of the attack. When you do so, the Grappled Weapon takes the same amount of damage.
Alternatively, you may make a Grappled Weapon attack against a solid surface (rolling against the Grappled Weapon's AC), in which case the Grappled Weapon takes the full damage of the attack.

Additionally, while you are Raging, you may add your Rage Damage Bonus to your Grapple DC.

Level 6: Level 6: Arm like a Catapult

You may treat all Improvised Weapons as if they had the Thrown property, with a range of 20/40. A Grappled Weapon that is larger than you has a range of 10/20.

Additionally, when you make an attack with an Improvised Weapon, you may activate the Topple or Push mastery property.

 

Level 10: Level 10: Circle Throw

When you make an Unarmed Strike to successfully Grapple a creature, you may immediately use it to make an Improvised Weapon attack as part of the same attack.

Additionally, if you make an attack immediately after moving at least 10 ft., you may deal additional damage with the attack equal to 1d6 for every 10 ft. moved. If the attack is a Thrown attack with an Improvised Weapon, you may increase the Short and Long range of the throw by 5/10 ft. for every 10 ft moved.

If you fall more than 10 ft., you may use a Reaction to make an attack, treating the distance fallen as movement.

Level 14: Level 14: Might of Giants

When you use an Unarmed Strike to Grapple a creature, you may now Grapple a creature that is two sizes larger than you.
A Grappled Weapon that is two or more sizes larger than you deals three damage dice instead of two.

You deal double damage to objects and structures.

Additionally, when a creature succeeds on a Saving throw to avoid being Grappled by you or an Ability Check to escape your Grapple, you may expend one charge of your Rage ability to turn their success into a failure.