Dragonborn Eldritch Knight Fighter Build Guide
With an abysmal 8 Intelligence, your Dragonborn Eldritch Knight ignores fireballs to become an unbreakable flying juggernaut fueled by the Shield spell and Draconic Flight.
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Why Eldritch Knight?
Playing an Eldritch Knight with 8 Intelligence sounds like a trap, but it is actually the foundation of a mathematically impenetrable martial build. By abandoning the Evocation school entirely, you stop pretending to be a Wizard and embrace your true role: an arcane dreadnought. You use your limited spell slots exclusively for Abjuration magic like Shield and Absorb Elements, which require zero Intelligence to function perfectly. You don't need a high spell save DC when your game plan is to simply refuse to take damage while hacking enemies to pieces with a Greatsword.
The Dragonborn species traits perfectly patch the mechanical holes in the Eldritch Knight chassis. Fighters notoriously struggle with swarms because they lack area-of-effect capabilities, and a low-INT Eldritch Knight can't rely on Shatter or Fireball. Enter your Breath Weapon, which scales with Constitution and gives you on-demand AoE damage. Furthermore, Draconic Flight solves the melee Fighter's greatest vulnerability—getting kited by flying enemies—saving you from having to waste a 3rd-level spell slot on Fly.
Ultimately, this combination turns you into a self-sufficient frontline terror. War Bond ensures you are never disarmed, and War Magic completely redefines your action economy in Tier 2. You are an anvil that strikes back, leveraging draconic resilience and arcane defensive barriers to outlast anything the Dungeon Master throws at you.
Eldritch Knight Features
Spellcasting
Level 3You have learned to cast spells. See the General Rules of Spellcasting for the rules on casting spells. Cantrips (Rank 0 Spells): You know two cantrips of your choice from the Wizard spell list. You learn additional wizard cantrips of your choice at higher levels. Spell Slots: The Eldritch Knight Spellcasting table shows how many spell slots you have of 1st rank and higher. To cast one of these spells, you must expend a slot of the spell's rank or higher. You regain all expended spell slots when you finish a Long Rest. Spells Known of 1st Rank and Higher: You know three 1st-rank wizard spells of your choice, two of which you must choose from the Abjuration and Evocation schools of magic. The Spells Known column of the Eldritch Knight Spellcasting table shows when you learn more wizard spells of 1st rank or higher. Spellcasting Ability: Intelligence is your spellcasting ability for your wizard spells.
War Bond
Level 3You can bond with a weapon that isn't magical and that lacks the Heavy property. If it meets these criteria, over the course of 1 hour during a Short Rest, you can bond the weapon to yourself by performing a ritual. You can perform this ritual as part of taking a Short Rest. Thereafter, you can't be disarmed of that weapon unless you are Incapacitated. If another creature uses the weapon, it can't gain the benefit of your War Bond. If you bond with a different weapon, your bond with the previous weapon ends.
War Magic
Level 7When you use your action to cast a cantrip, you can make one weapon attack as a Bonus Action.
Eldritch Strike
Level 10When you hit a creature with a weapon attack, that creature has Disadvantage on the next saving throw it makes against a spell you cast before the end of your next turn.
Arcane Charge
Level 15When you use your action to cast a spell, you can move up to your Speed as a Bonus Action. When you do so, you can move through other creatures' spaces but can't end your movement in another creature's space.
Improved War Magic
Level 18When you use your action to cast a spell, you can make one weapon attack as a Bonus Action.
Recommended Ability Scores
Dragonborn Traits That Benefit Eldritch Knight Fighter
Draconic Flight
Flight provides incredible mobility, letting the Fighter reach otherwise inaccessible positions.
Draconic Ancestry
Breath Weapon provides AoE damage that martial Fighters otherwise lack.
Breath Weapon
Breath Weapon provides AoE damage that martial Fighters otherwise lack.
Damage Resistance
Built-in damage resistance reduces incoming damage, keeping your Fighter alive longer in combat.
Combat Effectiveness
| Level | HP | Melee DPR | Ranged DPR |
|---|---|---|---|
| Level 5 | 39 | 7.8 | 7.8 |
| Level 11 | 81 | 10.73 | 10.73 |
| Level 17 | 123 | 10.73 | 10.73 |
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Build Path (Levels 1-20)
Levels 1-4
Start with a Greatsword and Chain Mail. At level 3, you gain Spellcasting and War Bond. Your INT is 8, so absolutely do not take saving throw cantrips; take Booming Blade and Minor Illusion. For your 1st-level spells, select Shield, Absorb Elements, and take Find Familiar as your unrestricted out-of-school choice to grant yourself the Help action. At level 4, take the Heavy Armor Master feat to bump your 15 Strength to 16 and reduce non-magical physical damage by 3. Combined with Shield, you are functionally immortal in Tier 1.
Levels 5-10
Level 5 brings Extra Attack and Draconic Flight, making you a flying blender. Level 7 is your massive power spike: War Magic. Your new optimal turn is to use your action to cast Booming Blade, which scales up at level 5, and then use your bonus action to make a weapon attack. At level 8, take the Great Weapon Master feat. Level 10 brings Eldritch Strike. Let's be brutally honest: with 8 INT, Eldritch Strike is completely useless for you. You are not casting saving-throw spells, so forcing disadvantage on them means nothing. Ignore this feature and keep swinging.
Levels 11-16
At level 11, you get Extra Attack (x3). At this exact moment, you must stop using War Magic. Making three attacks with your Greatsword out-damages the Booming Blade + Bonus Action strike combo. Switch back to the Attack action. Level 13 grants 3rd-level spells; take Haste for the AC bump and extra attack. Level 15 grants Arcane Charge, giving you a free 30-foot teleport whenever you Action Surge to cast a spell. Use this to bypass enemy frontlines and instantly teleport to the enemy spellcaster.
Levels 17-20
Level 17 grants your second Action Surge and 4th-level spells. Take Fire Shield; it requires no concentration, uses no INT modifier, and punishes enemies for daring to hit your massive AC. Level 18 brings Improved War Magic. You can now cast a leveled spell like Haste and immediately make a weapon attack as a Bonus Action, maintaining your damage output on buff turns. Use your level 19 ASI to cap your Strength at 20, preparing for your fourth Extra Attack at level 20.
Recommended Spells
Cantrips
Take Booming Blade immediately. It is mandatory to make your War Magic feature function optimally from levels 7 to 10. For your second cantrip, take Minor Illusion or Light since your Dragonborn lacks Darkvision and you need a way to see in dungeons without dropping your two-handed weapon.
Level 1-2 Spells
Shield and Absorb Elements are the undisputed core of this build. Never unprepare them. Take Find Familiar (Owl) as your unrestricted 1st-level spell for Flyby Help actions. At 2nd level, avoid Shadow Blade (it doesn't work with Great Weapon Master). Instead, grab Mirror Image for concentration-free defense and Misty Step as your unrestricted 2nd-level pick for emergency mobility when Draconic Flight is down.
Level 3-5 Spells
Haste is your bread and butter here. It gives you +2 AC, advantage on Dexterity saves, and an extra weapon attack. Counterspell is a trap for you—with 8 INT, you will fail the ability check against higher-level magic. Stick to Dispel Magic if absolutely necessary, or grab Protection from Energy to stack with your innate Dragonborn Damage Resistance.
High-Level Spells
As an Eldritch Knight, you cap at 4th-level spells. Fire Shield is your absolute best Evocation option, requiring no saving throw and providing excellent retaliation damage. Take Dimension Door as your unrestricted pick; teleporting 500 feet with your heavily armored bulk solves encounters that a Greatsword cannot.
Recommended Feats
Heavy Armor Master
Take this at level 4. It rounds your 15 Strength up to 16, keeping you mathematically on-curve. More importantly, shaving 3 damage off every non-magical physical attack is devastating at low levels. When combined with your Dragonborn Damage Resistance and the Shield spell, goblin and bandit encounters become trivial.
Great Weapon Master
Take this at level 8. You have a reliable source of advantage via your Find Familiar owl, and you will eventually have up to four attacks per turn to trigger the +10 damage. This is the engine that keeps your DPR relevant in Tier 3 and 4.
War Caster
Take this at level 12. While you can technically hold a two-handed weapon in one hand to cast Shield, War Caster allows you to cast Booming Blade as an opportunity attack. Pinning an enemy in place because they take thunder damage if they move away makes you a terrifying battlefield controller.
Gear Progression
Tier 1 (Levels 1-4)
Your priority is securing Plate Armor to hit 18 AC naturally. Purchase a mundane Greatsword immediately; use your War Bond ritual on it so you can summon it to your hand. Keep a few javelins, but your Breath Weapon handles ranged area damage early on.
Tier 2 (Levels 5-10)
Look for a +1 Greatsword and a Cloak of Protection. If your DM allows uncommon magic items, beg for Winged Boots. Even though you have Draconic Flight, the boots give you permanent air superiority, letting you save your innate flight charges for emergencies.
Tier 3 (Levels 11-16)
Acquire a Belt of Fire Giant Strength. Setting your Strength to 25 allows you to ignore Strength ASIs entirely and focus on Constitution or feats. Upgrade to a +2 Greatsword and look for an Amulet of Health to pad your hit points for frontline tanking.
Tier 4 (Levels 17-20)
Seek out a +3 Greatsword and a Belt of Storm Giant Strength. A Ring of Spell Storing is the ultimate defensive item for an Eldritch Knight; have your party Cleric cast Shield of Faith into it so you can maintain concentration on it while saving your own slots for Shield.
Party Composition
Your role in the party is the ultimate Anvil. You stand directly in front of the most dangerous melee enemies, cast Shield to reach 25+ AC, and refuse to die. Because you are so entirely self-sufficient defensively, you pair perfectly with highly offensive or control-oriented squishy casters.
A Chronurgy or Divination Wizard is your best friend. They can drop massive control spells like Web or Hypnotic Pattern behind you, knowing you can hold the chokepoint indefinitely. Furthermore, a Peace Domain Cleric casting Emboldening Bond turns your already high AC and Great Weapon Master attacks into guaranteed successes.
Multiclass Options
War Magic Wizard 2
A phenomenal dip after Fighter 11. Arcane Deflection gives you a reaction to gain +2 AC or +4 to a saving throw without burning a spell slot. Since your only spells are Shield and Absorb Elements, the penalty of only being able to cast cantrips next turn doesn't hurt your Greatsword attacks at all.
Barbarian 2
Avoid this completely. While Reckless Attack is tempting for Great Weapon Master, you cannot cast spells or concentrate while Raging. This shuts off your Spellcasting, disables Shield, and turns you into a strictly worse version of a pure Barbarian.
Common Pitfalls
- Taking Evocation attacks with 8 INT: If you cast Fireball or Shatter, the enemy will pass their save. Stick entirely to Abjuration buffs that do not care about your Intelligence modifier.
- Overusing War Magic at Level 11+: War Magic is amazing at level 7. But once you unlock your third Extra Attack at level 11, casting Booming Blade plus one bonus attack is mathematically inferior to just attacking three times with a Greatsword.
- Trying to force Eldritch Strike: Eldritch Strike imposes disadvantage on spell saves. With 8 INT, your save DC is around 9. Disadvantage on a DC 9 save is worthless. Completely ignore this feature.
- Casting Shadow Blade with GWM: Shadow Blade creates a finesse or light weapon. It lacks the Heavy property, meaning you cannot use Great Weapon Master's +10 damage with it. Stick to your War Bonded Greatsword.
More Questions
Can I use Breath Weapon with War Magic?
Does War Bond make my weapon magical for overcoming resistance?
How does Arcane Charge interact with Action Surge?
Is Counterspell worth taking on an Eldritch Knight?
Strengths & Weaknesses
Strengths
- ♦ Eldritch Knight grants Spellcasting at level 3
- ♦ High hit points for frontline durability
- ♦ Strong species-class synergy enhances core abilities
- ♦ Strong melee damage output
- ♦ Good armor class and initiative
Weaknesses
- ♦ Low Wisdom — vulnerable to common saving throws
- ♦ Limited ranged and magical options without multiclassing
- ♦ No Darkvision — may need light sources in dungeons
Pro Tips
Use War Bond on a heavy crossbow as your backup weapon. Summon it instantly to shoot fleeing enemies.
Cast Booming Blade at level 7 to trigger War Magic, locking enemies in place while dealing massive damage.
Never cast Fireball. Your 8 INT means enemies will pass the save. Use your Dragonborn Breath Weapon instead.
Rely on Find Familiar (Owl) for Flyby Help actions, granting reliable advantage on your Great Weapon Master strikes.
Save your limited spell slots exclusively for Shield and Absorb Elements to maintain an unbreakable AC.
Other Fighter Subclasses for Dragonborn
Other Races for Eldritch Knight Fighter
Frequently Asked Questions
Is Eldritch Knight a good subclass for Dragonborn Fighter?
What makes Eldritch Knight different from other Fighter subclasses?
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