Goliath Fighter Build Guide

Levels 1-4

Start with a 15 Strength and 13 Constitution, using your Goliath +2/+1 to reach 17 STR and 14 CON. Take the Great Weapon Fighting style to reroll 1s and 2s on your d10 halberd damage. At level 3, select the Battle Master archetype. Precision Attack is mandatory to offset future power attack penalties, while Brace and Menacing Attack give you off-turn damage and control. At level 4, take the Polearm Master feat. Your Bonus Action is largely free because Giant Ancestry triggers on a hit, meaning you can consistently utilize the 1d4 blunt strike.

Levels 5-10

Level 5 brings Extra Attack and your species' Large Form trait. Activating Large Form turns your 5-foot square into a 10-by-10 space; when holding a halberd, you now threaten a massive 30-by-30 grid, guaranteeing Brace or Polearm Master reaction attacks against approaching enemies. At level 6, take the Great Weapon Master feat. Use Hill Giant Ancestry on your first attack to knock the target prone, then use GWM's power attack on your Extra Attack and Polearm Master Bonus Action with advantage. At level 8, take a +2 Strength ASI to bump your primary attacking stat to 19.

Levels 11-16

Level 11 upgrades Extra Attack to three strikes per action. A prone enemy now faces four GWM attacks per turn (including your Bonus Action). At level 12, you must take Resilient (Wisdom). Your 10 Wisdom is a massive liability in Tier 3 play, where a failed save against Dominate Person turns your massive DPR against the party. At level 14, take the Slasher feat to round your 19 Strength to 20, adding a movement speed debuff that stacks brutally with the prone condition. At level 16, take Tough to pad your d10 hit die.

Levels 17-20

Level 17 grants your second Action Surge. You can now activate Large Form, step into the center of a chaotic melee, and unleash six Great Weapon Master attacks in a single turn. Use Precision Attack on any swings that roll low to ensure the heavy damage connects. At level 19, take the Alert feat. As a Striker, going first allows you to intercept enemies, expand into Large Form, and establish your massive reach threatened area before the enemy frontline can engage your squishy casters.

Polearm Master

Take this at level 4. The Goliath's Large Form expands your physical footprint to 10-by-10. When combined with a reach weapon like a halberd, you threaten a 30-by-30 foot square on the map. Enemies will inevitably trigger the reaction attack just trying to navigate around your massive bulk.

Great Weapon Master

Essential at level 6. The Goliath's Hill Giant Ancestry allows you to knock a target prone on a successful hit. Once they are prone, you have advantage on all subsequent melee attacks against them. This completely offsets the accuracy penalty of Great Weapon Master, allowing you to deal devastating damage without needing a spellcaster to set up Faerie Fire.

Resilient (Wisdom)

Take this at level 12. With an optimal stat array leaving you with 10 Wisdom, you are a prime target for enemy enchantments. Failing a DC 17 save against Crown of Madness or Dominate Person means you will obliterate your own party. Adding your proficiency bonus to these saves is non-negotiable in Tier 3.

Slasher

Take this at level 14 to round out a 19 Strength score. Slashing a target reduces their speed by 10 feet. If you use Hill Giant Ancestry to knock them prone, they must spend half their movement to stand up. With Slasher reducing their base pool, many enemies will be completely unable to reach your backline after standing.

Tier 1 (Levels 1-4)

Start with Chain Mail and a Halberd. Because your Dexterity is 14 and you lack Darkvision, purchase a Bullseye Lantern and plenty of oil immediately. Carry a bundle of javelins; your Giant Ancestry traits generally require melee or close range, so you need a fallback for flying enemies.

Tier 2 (Levels 5-10)

Upgrade to Splint or Full Plate armor as soon as you have the gold. Seek out a +1 Halberd to ensure your attacks bypass non-magical bludgeoning/piercing/slashing resistance. Most importantly, acquire Goggles of Night. This magic item completely erases the Goliath's biggest species weakness, freeing up your hands from carrying light sources.

Tier 3 (Levels 11-16)

Look for a Belt of Fire Giant Strength. Since you capped your Strength at 20, overriding it to 25 (+7 modifier) dramatically increases your Great Weapon Master accuracy. A Cloak of Displacement is also incredibly valuable; since you are a massive Large target drawing aggro, forcing disadvantage on incoming attacks preserves your hit points.

Tier 4 (Levels 17-20)

Aim for a +3 Halberd and Armor of Invulnerability. At this tier, you want a Bloodfury Tattoo. The necrotic damage and healing trigger on a hit, meaning you can stack it simultaneously with Hill Giant Ancestry to knock an enemy prone, deal massive necrotic damage, and heal yourself all on the first strike of your Action Surge volley.

As a frontline Striker and area-denial tank, you need party members who can cover your debilitating lack of Darkvision and poor mental saves. A Twilight Domain Cleric is your best friend. They can share their 300-foot Darkvision with you, completely removing your species' main drawback, while their Twilight Sanctuary grants you a constant stream of temporary hit points that stack nicely with your d10 hit die.

You also pair flawlessly with an Oath of the Ancients Paladin. Because your Wisdom is only 10, the Paladin's Aura of Protection grants a vital boost to your saving throws, while their Aura of Warding halves incoming spell damage. In return, your Large Form and Polearm Master reactions keep enemies pinned down so the Paladin can smite them without having to chase them across the map.

Barbarian 2 Dip

Taking two levels of Barbarian for Rage and Reckless Attack is a massive power boost. If you run out of Hill Giant Ancestry uses to knock enemies prone, Reckless Attack gives you on-demand advantage to fuel your Great Weapon Master strikes. Danger Sense also synergizes perfectly with your 14 Dexterity, giving you advantage on the most common area-of-effect saving throws.

Gloom Stalker Ranger 3 Dip

A three-level investment in Ranger fixes your character. It grants Umbral Sight, giving you the 60 feet of Darkvision your species lacks. Dread Ambusher gives you an extra attack on the first turn of combat, which pairs violently with Action Surge and your Giant Ancestry burst damage, while Hunter's Mark adds a 1d6 to the four or five attacks you make on turn one.

• Playing a Rune Knight: The Rune Knight's Giant's Might feature makes you Large, which completely overlaps with the Goliath's Large Form species trait. You waste a core feature of your species. Stick to Battle Master or Echo Knight.
• Ignoring Ranged Combat: Goliaths are heavily biased toward melee. If you don't carry javelins or a heavy crossbow (using your 14 DEX), a single flying enemy like a Harpy will kill you without you ever rolling an attack.
• Forgetting Squeezing Rules: When you activate Large Form, you become a 10x10 creature. In a standard 5-foot dungeon corridor, you are now 'squeezing', giving you disadvantage on attacks and Dexterity saves. Only use Large Form in open rooms.
• Wasting Giant Ancestry on the Last Attack: Hill Giant Ancestry knocks targets prone. If you use it on the final attack of your turn, the enemy will simply stand up on their turn, wasting the advantage. Always use it on attack number one.