Baldur’s Gate 3 Warlock Fiend Build And Subclass Guide

The Fiend is a high damage Warlock subclass in Baldur's Gate 3 once you have the right build for it so we are here to help.

Warlock Fiend in BG3 is a special subclass mixing high survivability with great single target and AoE damage capabilities. If a high-damage-dealing Warlock is what you are interested in, then our Baldur’s Gate 3 Warlock Fiend build will suit you perfectly as we trade crowd control and disabling for pure burst damage. The Fiend Build is also one of the best builds of Wyll in BG3.

How good is Warlock Fiend in BG3?

Warlock Fiend build is amazing when it comes to cantrip availability and a chance to cast them effectively. This build also benefits from their passive ability to recover after every short rest. This makes Warlock Fiend extra durable in addition to their fierce combat skills. They rarely miss any attack roll, even against high AC enemies. 

However, Warlock Fiend inherits the shortcomings of its parent class. They have limited access to spells and spell slots. Their offensive spells are not that good and have limited range against enemies, making Warlock Fiend an average spellcaster in BG3. 

When it comes to choosing between Warlock Fiend or Warlock, the great old one builds, it all comes down to playstyle choices. The fiend subclass is specialized in dealing with long-range attacks and recovery. They lack proper spellcasting and heavily rely on a Sorcerer in their party. The Old Great One has excellent control over magic spells and cantrips. However, their defense is low, and they need a much tankier party member to survive several onslaughts.

Starting Abilities and Skills for Warlock The Fiend

Race Drow Drow is the best race to pick for our Fiend Warlock build in BG3 because of the superior Darkvision racial bonus. On top of that, it also has resistance to Charm and Sleep effects. Alternatively, you can pick Half-Elf if you want to double down on tankiness via the Civil Militia perk along with regular Darkvision and shield equipment perks as a small compromise. 
Ability Point Distribution DEX helps give you initiative on your turn, CHA helps with your damage scaling, and CON improves your overall survivability. DEX helps give you initiative on your turn, CHA helps with your damage scaling and CON improves your overall survivability.
Skills Sleight of Hand, Arcana, Perception, Deception, Intimidation – 

Best Background

Charlatan is a good background for The Fiend subclass of Warlock in BG3 on account of the gains in CHA proficiency and sleight of hand which is always a useful skill to have.

Best Feats for Warlock Fiend in BG3

Like all other classes, our Warlock Fiend build in BG3 also relies on three feat points. This means you will be sticking to a singular class instead of multiclassing for this build. Below are my recommendations for the best feats to pick for The Fiend subclass. 

Level 4 War Caster War Caster increases your concentration and helps to avoid interruption. 
Level 8 Ability Improvement Since we are making a damage build, spending the ability point to increase Charisma will benefit you a lot. 
Level 12 Ability Improvement Once again, at level 12, spend your third feat point to increase Charisma to a maximum of 20. 

Best Spells and Cantrips for Warlock Fiend

Prioritize some offensive cantrips, especially early on, to supplement your damage capabilities. Eldritch Blast and Bone Chill are nice starting Cantrips, while Armor of Agathys and Hex are nice starting spells. 

Hellish Rebuke is also a good addition as, much like Armor of Agathys, it improves your DPS capabilities even when it isn’t your turn. 

Best armor and weapons for Warlock Fiend

Helm: Birthright for +2 CHA ability. 

Back: Cloak of the Weave. This rare cloak allows you to absorb a little magical damage and add it to your next attack. 

ArmorPotent Robe. This very rare armor increases potency of all your cantrips in correspondence to your charisma. 

Hands: Quickspell Gloves. Changes action to bonus action required to cast a cantrip. 

Boots: Disintegration Night Walkers. These allow you to walk on any kind of surface and avoid movement penalties like slipping on ice or grease. You need to kill True Soul Nere to get these boots. 

Amulet: Amulet of Greater Health. Steal from House of Hope to gain a nice boost to total health. 

Melee weapon: Markoheshkir. This legendary quarterstaff grants your weapon +2 weapon enchantment. 

Rings: Killer’s Sweetheart and Shifting Corpus Ring

BG3 Warlock Fiend build level progression

Level Unlocks Description 
Eldritch Invocations You’ll want to pick Agonizing Blast and Repelling Blast since the former adds a Charisma modifier to your attacks, increasing damage, while the latter adds a strong pushback to keep your distance and potentially kill enemies with fall damage
Level 1 Spell slot, Scorching Ray spell, Pact boons. Scorching Ray for increased DPS capability. I would recommend Find Familiar: Imp boon since the Imp has solid DPS utility compared to the others. 
First Feat slot, Misty Step Spell, Level 2 Spell slot Misty Step improves your repositioning capabilities. 
Deepened Pact passive, Level 3 Spell slot, Hunger of Hadar spell, Second Eldritch invocation Deepened Pact passive gives your familiar an extra attack. Pick Hunger of Hadar spell here. Select Fiendish Vigour for increased hit points. 
Level 3 Spell slot, Fireball spell, Dark One’s Own Luck passive Fireball spell for increased DPS capabilities. 
Level 4 Spell slot, Blight spell, Third Eldritch Invocation  Blight for great single-target damage. Pick Book of Ancient Secrets, primarily to unlock Silence which has good synergy with Hunger of Hadar. 
Second Feat unlocks, Level 4 Spell slot, Mirror Image spell Ability Improvement to increase CHA, Mirror Image to improve defensive stats on account of increased AC per clone. 
Level 5 Spell slot, Cone of Cold spell, Fourth Eldritch Invocation Cone of Cold as the wet status helps to capitalize on double damage. Pick Minions of Chaos to add a strong elemental summon to your arsenal. 
10 Fiendish Resilience class action, Level 5 Spell slot This class action allows you to pick a specific resistance to boost per short rest. 
11 Mystic Arcanum feature, Level 6 Spell slot, Circle of Death spell You can use any level 6 spell once per long rest without using a spell slot. Circle of Death delivers massive AoE damage. 
12 Final Feat unlocks Ability Improvement to max Charisma ability. 
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Ali is a passionate RPG gamer. He believes that western RPGs still have a lot to learn from JRPGs. He is editor-in-chief at SegmentNext.com but that doesn't stop him from writing about his favorite video ...