Booming Blade Eldritch Knight
Fighter 12 (Eldritch Knight)Open with Booming Blade to activate War Magic, then chain Improved Extra Attack and a bonus-action strike into a four-hit turn. Sword of Chaos supplies the main two-handed damage and on-hit healing, while Savage Attacker, elemental weapon riders, and Eldritch Strike turn this pure Fighter into a durable melee carry with strong control support.
Damage
Four-hit turns with Sword of Chaos and multiple damage riders
Survivability
23 AC from core gear, Sword healing, Shield reaction to 28
Boss
Eldritch Strike enables control, Action Surge compresses burst setup
Fighter
Fighter combines excellent weapon accuracy, heavy armour access, and more attacks than any other class. Eldritch Knight adds defensive and control magic without giving up the Fighter's four-feat progression.
The creator uses a Drow Half-Elf, gaining Superior Darkvision, Fey Ancestry, and Drow Magic while keeping the build's flexible ability-score allocation.
The main weapon is this two-handed greatsword. It combines strong physical damage with healing on every successful hit, which becomes especially valuable across the Fighter's four-attack Booming Blade sequence. Use a Strength elixir to overcome the build's base 8 Strength.
Alternatives
How to Obtain
Blindness immunity lets the Fighter attack normally from Darkness while advantage on Constitution saves helps protect concentration. It supports the Shadow-Cloaked Ring without replacing the main Sword of Chaos setup.
How to Obtain
The first main ring adds weapon damage against obscured targets. Steelwatcher Helmet lets the Fighter stand inside Darkness without being Blinded, keeping this rider active while Sword of Chaos remains equipped.
Alternatives
- Setup Only: Shadow Blade RingWiki
How to Obtain
Carry Arrow of Darkness to create an obscured fighting pocket and Arrow of Many Targets to spread Eldritch Strike across a group. A party member can also use Drakethroat Glaive to place an elemental weapon buff on the Fighter.
Mods & Attachments
- ▸Arrow of Darkness— Creates a Darkness cloud at the impact point. Sold by multiple merchants as their inventories improve.Wiki
- ▸Arrow of Many Targets— Ricochets to additional creatures, letting one ranged attack apply Eldritch Strike broadly. Sold by merchants from level 6 onward.Wiki
- ▸Drakethroat Glaive— Have a party member use Draconic Elemental Weapon on the Fighter's weapon for an elemental damage rider. Purchase it from Roah Moonglow at Moonrise Towers.Wiki
Combat Strategy
- ▸Drink an Elixir of Cloud Giant Strength before difficult endgame encounters so Sword of Chaos attacks use 27 Strength.
- ▸Equip Sword of Chaos with Shadow-Cloaked Ring and Ring of Elemental Infusion as the main loadout.
- ▸Equip a Blindness-immunity item before planning to fight inside Darkness.
- ▸Create a Darkness pocket with the spell or Arrow of Darkness, then engage from inside it.
- ▸Open the attack sequence with Booming Blade so War Magic becomes available.
- ▸Use Arrow of Many Targets when several enemies need Eldritch Strike before a control effect.
- ▸At level 11, cast Booming Blade, make two normal weapon attacks, then use War Magic for the bonus-action strike.
- ▸Attack from an obscured position so Shadow-Cloaked Ring adds damage to each Sword of Chaos hit.
- ▸Use Sword of Chaos's on-hit healing to recover health across the multi-attack sequence.
- ▸Move away from a Booming Blade target when the expected movement detonation is worth risking an opportunity attack.
- ▸Use Action Surge for another action when a priority target must fall immediately.
- ▸Apply Eldritch Strike before Hold Person so the target rolls its saving throw with disadvantage.
- ▸Attack a nearby paralyzed humanoid to convert melee hits into critical hits and trigger Craterflesh Gloves.
Sources
Verified: 2026-08-24 · All content is original with full credit to original creators.