Goliath Barbarian Build Guide

Levels 1-4

At level 1, you gain Rage and Unarmored Defense. With your starting stats (STR 15, DEX 13, CON 14), prioritize medium armor like Scale Mail over Unarmored Defense to push your AC to 15. Choose the Hill Giant Ancestry; knocking an enemy prone on your first hit makes your follow-up attacks devastating. At level 2, you unlock Reckless Attack and Danger Sense. Use Reckless Attack aggressively to secure kills, relying on your d12 hit die to absorb the retaliation. At level 3, select the Path of the Zealot subclass. Divine Fury adds 1d6 + half your Barbarian level in radiant or necrotic damage to your first hit, spiking your DPR significantly. For your level 4 ASI, take the Great Weapon Master feat. The flat +10 damage bonus is mathematically optimal when offset by the advantage from Reckless Attack.

Levels 5-10

Level 5 is your massive power spike. You gain Extra Attack, Fast Movement, and the Goliath's Large Form. Activating Large Form increases your speed to 40 ft., extends your space to 10x10, and adds advantage on Strength checks—making you the ultimate grappler of Huge targets. At level 6, Fanatical Focus gives you a crucial reroll on failed saving throws, patching up your vulnerability to mental saves. At level 8, take the Skill Expert feat (+1 STR to hit 18) and grab Expertise in Athletics. You will never fail a grapple check again. Level 9 brings Brutal Critical (1 die), making your greataxe crits roll 3d12.

Levels 11-16

At level 11, Relentless Rage ensures you stay standing even when reduced to 0 HP, requiring a manageable DC 10 Constitution save. Combined with your Zealot feature Warrior of the Gods, you are effectively immortal. For your level 12 ASI, take Resilient (Wisdom). Failing a Hold Person or Dominate Person save takes you out of the fight entirely; rounding your WIS to 13 and adding proficiency is mandatory for tier 3 survival. Level 14 grants Zealous Presence, a massive party-wide buff giving advantage on attacks and saves. At level 16, bump your Strength to 20 to maximize your attack bonus and Divine Fury output.

Levels 17-20

Level 17 increases your Brutal Critical to 3 extra dice. A critical hit with a greataxe now rolls 5d12 plus your Strength and Rage modifiers. Level 20 is the capstone: Primal Champion. Your Strength and Constitution scores both increase by 4, breaking the cap to reach 24. Your attacks are nearly guaranteed to hit, your AC jumps, and your HP pool swells well past 200. You are a Large-sized, 24-Strength demigod that strikes for over 40 damage per round while resisting all physical harm.

Great Weapon Master

Take this at level 4. The Goliath Barbarian's entire identity revolves around massive melee damage. Reckless Attack provides the consistent advantage needed to offset the -5 penalty to hit, and the bonus action attack on a critical hit or kill triggers frequently thanks to your high base damage and Divine Fury.

Skill Expert (Strength)

Take this at level 8. Bump your starting 15 STR (plus a +2 racial bonus) up to 18. More importantly, put the Expertise into Athletics. When you activate Large Form, you can grapple Huge creatures. With Advantage from Rage and Expertise from this feat, your Athletics checks will routinely hit the high 20s, allowing you to pin adult dragons to the floor.

Resilient (Wisdom)

Take this at level 12. Barbarians have a glaring weakness to Wisdom saving throws. Spells like Fear, Hypnotic Pattern, and Hold Person will instantly shut down your Rage. Gaining proficiency in Wisdom saves, combined with the Zealot's Fanatical Focus reroll, ensures you stay in the fight and don't get turned against your own party.

Tier 1 (Levels 1-4)

Start with a Greataxe to maximize the synergy with Brutal Critical later on. Purchase Half-Plate as soon as you can afford it to cap your AC at 16 (15 from armor + 1 from DEX). Carry a bundle of Javelins; your 40 ft movement speed won't always close the gap, and you need to make an attack to maintain your Rage.

Tier 2 (Levels 5-10)

Seek out a +1 Greataxe or a +1 Halberd. If you switch to a Halberd, combine it with your Large Form to control a massive 25x25 foot area of the battlefield. A Cloak of Protection is highly recommended to shore up your saving throws, particularly mental ones.

Tier 3 (Levels 11-16)

You want a Belt of Fire Giant Strength to artificially boost your Strength past the level 20 cap early. Pair this with a +2 weapon. Boots of Speed are phenomenal here; doubling your 40 ft movement speed allows you to cross the entire map and dive the enemy backline in a single turn.

Tier 4 (Levels 17-20)

The ultimate goal is a Bloodfury Tattoo, which grants extra necrotic damage and healing on your strikes, further synergizing with your d12 hit die to make you unkillable. A +3 Greataxe or a legendary weapon like Gurt's Greataxe will push your critical hit damage into the stratosphere.

As a Striker and frontline tank, the Goliath Barbarian demands to be the center of the enemy's attention. You want party members who can capitalize on your massive physical presence and the chaos you cause with Reckless Attack. You pair exceptionally well with an Order Domain Cleric. Their Voice of Authority feature allows you to make reaction attacks when they target you with a spell like Healing Word or Shield of Faith. Getting an extra Great Weapon Master swing outside of your turn drastically increases your DPR.

You also shine alongside a spellcaster who utilizes Enlarge/Reduce. If a Sorcerer or Wizard casts Enlarge on you while you use your Goliath Large Form, you become a Huge creature. This means you occupy a 15x15 space, deal extra 1d4 damage on every hit, and can legally grapple Gargantuan creatures like the Tarrasque or Ancient Dragons. Finally, a Rogue greatly benefits from your presence; your Large Form constantly threatens enemies, guaranteeing the Rogue's Sneak Attack triggers every round.

Fighter 3 (Battle Master)

Taking a three-level dip into Fighter is incredibly potent after Barbarian 5 or 6. You gain the Great Weapon Fighting style to reroll 1s and 2s on your d12 damage dice. Action Surge allows for a devastating nova round. The Battle Master subclass grants maneuvers like Precision Attack, which you can use to turn a missed Great Weapon Master swing into a hit, and Trip Attack, which synergizes perfectly with your melee strikes.

Rogue 2

If you prefer mobility and utility over raw burst damage, a two-level dip into Rogue provides Expertise (saving you a feat on Skill Expert for Athletics) and Cunning Action. Being able to Dash as a bonus action means your Goliath can move 80 feet in a single turn and still take the Attack action, guaranteeing no enemy spellcaster can hide from you.

• Wasting Stone's Endurance before Rage: Damage resistance applies before flat damage reduction. Always wait to use Stone's Endurance until after your Rage has halved the incoming bludgeoning, piercing, or slashing damage.
• Ignoring your Javelins: If you cannot reach an enemy and fail to take damage or make an attack, your Rage drops. Always throw a Javelin if you can't close the distance, even if it's at disadvantage.
• Forgetting Large Form's grapple benefits: As a Large creature, you can grapple Huge targets. Players often forget this and assume they can only hit things. Grapple the Fire Giant and shove it prone; it cannot stand up with 0 movement.
• Reckless Attacking spellcasters: Reckless Attack gives enemies advantage on attack rolls against you. If you are fighting a spellcaster who forces saving throws instead of making attack rolls, you are giving their minions free advantage against you for no reason. Only use it when you need to land the hit.