How to Beat Balthazar in BG3 (Gauntlet of Shar)

Balthazar is nasty, but very abusable: he relies on undead, positioning, and Cloudkill, and you can turn all three against him for an easy win.

Quick Scoop

• Focus on controlling or deleting his undead first, then burst him down in melee.

• Abuse his weakness to Darkness , lack of Darkvision, and the fact he loves casting Cloudkill on himself.

• You can even avoid the fight entirely with clever door tricks like Knock/lockpicking and hiding while he dies outside.

Who Balthazar Is & Why He’s Dangerous

Balthazar is Ketheric’s necromancer ally in the Gauntlet of Shar and appears as a boss surrounded by undead minions.

• He buffs nearby undead with resistance to physical damage , making his army quite tanky.

• His spells deal extra necrotic damage and he can heal when he kills with spells , so letting him free‑cast is a bad idea.

• He can cast Cloudkill , a large poison AoE that melts squishier party members very fast.

Story-wise in Act 2, he’s a big pivot point: how you deal with him affects the Nightsong and the Temple of Shar section, which is a hot topic in current BG3 forum discussion and YouTube guides even in 2024–2025.

Balthazar’s Key Weaknesses

These are the levers you want to pull if you’re searching “how to beat Balthazar bg3”:

1. No Darkvision
   • He’s one of the few bosses who does not have Darkvision , which makes him very vulnerable to Darkness or fighting in unlit areas.

 * If you can see in magical darkness (Devil’s Sight, etc.), you can hit him while he whiffs attacks.

2. Relatively Low HP for a Boss
   • Guides note that characters like Lae’zel or Karlach can potentially kill him in a single round with strong multi-attacks.

 * That means focus fire and action economy are huge here: once his minions are controlled, he folds fast.

3. Cloudkill and Positioning Habits
   • He will happily cast Cloudkill on himself if it hurts you, damaging himself in the process.

 * He loves to **jump to high ground** to kite you, which makes him vulnerable to **Misty Step chasers and Shove**.

4. Light Weight & Shove Vulnerable
   • He’s relatively light and can be Shoved off the edge of the arena, just like his skeletons.

 * This “push build” strat is so popular that many guides and videos call it the easiest way to remove him.

Pre‑Fight Setup (Easy Mode Before You Roll Initiative)

Before you engage, set up like you’re planning a heist, not a bar brawl.

Party & Spells to Prioritize

• Frontliners : Lae’zel, Karlach, or any high‑STR martial with multiple attacks.

• Support/Casters :
  • A cleric like Shadowheart for Spirit Guardians and healing.

* A wizard/warlock/sorcerer for **Silence, Darkness, Misty Step, Cloud of Daggers, Counterspell**.

• Helpful spells/abilities:
  • Silence to shut down his spellcasting.

* **Darkness** to exploit his lack of Darkvision.

* **Spirit Guardians** for shredding ghouls/medics around you.

* **Cloud of Daggers / other AoE** to hit clustered undead.

* **Entangle** , **Hold Person** , or **Sentinel** feat to keep him from running.

• Potions & buffs:
  • Poison resistance if you have it, to blunt Cloudkill.

* Generic buffs like Potion of Speed, Bless, and Protection from Evil/Good all pay off.

Step‑by‑Step: Standard Fight Strategy

This is the “fair fight” route if you’re not going for instant cheese.

1. Control the Undead First

Balthazar starts with Flesh (his big golem) and several ghouls/undead allies.

• Kill or control Flesh quickly :
  • Guides recommend focusing heavy hitters like Karlach on Flesh first to remove the giant undead berserker.

* Flesh gets disadvantage if he takes **Fire damage** , making him much easier to handle.

• Group control:
  • Drop Spirit Guardians in melee to eat ghouls over time.

* Use **AoE damage spells** (Cloud of Daggers, Fireball, etc.) on clusters of skeletons and ghouls.

The idea is to remove his “crowd” so you can focus on him without being swarmed.

2. Shut Down Balthazar’s Casting

While your main team is handling Flesh and the ghouls, assign one character to harass Balthazar himself.

• Send Lae’zel, Karlach, or a mobile melee directly to him.

• Cast Silence on him or the area he stands in so he can’t cast Cloudkill or other spells effectively.

• If you have Counterspell , save it for his Cloudkill attempt.

If he lives more than a round, he’ll likely cast Cloudkill and start chewing through your party’s HP, so removing or countering that is priority one.

3. Abuse Darkness & Position

Once minions are mostly down, it’s time to bully him.

• Darkness play :
  • He doesn’t have Darkvision , so casting Darkness on or near him makes it much harder for him to hit you.

* If you have ways to see in darkness, you get a big advantage.

• High ground & chase:
  • He likes to jump to the right or left ledges in the arena when threatened.

* Pre‑position one melee on a ledge where he tends to jump, or **Misty Step / Dash** to follow him and prevent escape.

4. Lock Him In and Burst

Once he’s isolated, you go all‑in:

• Surround him in melee, using Sentinel , Entangle , or opportunity attacks to keep him from running.

• Use Action Surge , Haste, and any high‑damage resources to delete his HP pool in a single turn if possible.

• Don’t stand in his Cloudkill—step out immediately if he manages to cast it.

When he dies, you can loot him for items like the Circle of Bones , which grants Undead Ward and lets you Animate Dead as an action —very on-theme for a necromancer boss.

Cheese & Creative Tactics (Including No‑Fight Option)

Because “how to beat Balthazar bg3” is trending in guides and forum discussions, a lot of players share clever and cheesy methods.

1. Knock / Lockpick and Hide (No Real Fight)

A popular Reddit strategy: you can avoid fighting him outright.

• Before meeting him, there’s a big fight in the Temple of Shar where he waits behind a magically sealed door while you clear enemies.

• Players discovered you can use Knock or even lockpicking to interact with his door the way he did with yours.

• Once his room is safe, you:
  • Dash into his now empty room ,
  • Close or lock the door (Arcane Lock helps),
  • Hide in a corner and wait while he dies to outside threats or scripted events, essentially skipping the showdown.

This is very in line with BG3’s “creative solutions” design that fans keep praising on forums.

2. Push Him Off the Edge

This is the classic “easy way” many YouTube guides mention:

• He’s light enough to be Shoved like the skeleton archers.

• With high STR, Enlarge, or other push-enhancing effects, you can simply Shove him off the platform for an instant kill, though you may miss out on some loot depending on how you do it.

Some later guides even show no-push tactician kills that lock him down so hard he never gets a turn, but shove builds remain one of the trendiest answers to this fight.

Mini Sections: Role‑Play Choice & Nightsong

• If you ignore Balthazar and focus only on adds, he can quickly kill the Nightsong , ruining your attempt to save her.

• Sending a strong character like Karlach or Lae’zel directly to him early helps prevent that; some builds can kill him within one round before he does serious harm.

This makes the fight not just a DPS race, but also a story decision that continues to fuel forum debates and theorycrafting.

Simple Game Plan Recap

1. Buff up and pre‑position , bringing Silence, Darkness, and strong frontliners.

2. Delete or control Flesh and the ghouls with Spirit Guardians and AoE.

3. Send one melee straight to Balthazar , Silencing or Counterspelling him.

4. Use Darkness and positioning to deny him good attacks and escape routes.

5. Burst him down in one or two rounds , or Shove him off if you’re going full cheese.

6. Optional: Skip the fight via Knock/lockpick and hide in his room.

“Information gathered from public forums or data available on the internet and portrayed here.”