BG3 Bosses Ranked by Difficulty: Every Major Boss From Easiest to Hardest (2026)

Boss Difficulty Tier List

Every major boss in Baldur’s Gate 3, ranked by how hard they hit a new player going in blind. Bosses are rated on: raw stats, adds, arena hazards, and how much preparation they demand.

Act 1 Bosses: Learning the Ropes

Commander Zhalk (Nautiloid) — D Tier

• HP: 150 | Level: 1
• Why he’s easy: You’re not supposed to kill him. Run to the transponder. The mind flayer tanks.
• Loot goal: Command: Drop his Everburn Blade. Grab it and run.

Owlbear Mother — C Tier

• HP: 98 | Level: 3
• Strategy: Kill the cub? No — kill the mother, spare the cub. She hits hard but has no gimmicks.
• Bring: High AC tank to absorb her multi-attack.

Phase Spider Matriarch — C Tier

• HP: 125 | Level: 4
• Gimmick: Spawns on web bridges. Burn the webs with Fire Bolt — she falls, takes 30-50 fall damage, goes prone.
• Bring: Fire damage. Kill spiderlings first.

Auntie Ethel — B Tier

• HP: 145 (including clones) | Level: 5
• Gimmick: Illusory clones. Magic Missile dispels each clone (1 hit = 1 clone gone).
• Key reward: Spare her at low HP for Hag Hair (+1 to any ability score).
• Bring: Magic Missile. Protection from Evil and Good.

Grym (Adamantine Forge) — A Tier

• HP: 304 | Level: 5-6
• Gimmick: Near-immune to damage unless Superheated (standing in lava). Use the forge hammer!
• Strategy: Lure Grym into lava → he becomes Superheated → lure him to center platform → pull forge lever → hammer drops for 150+ damage. Repeat 2-3 times.
• Bring: Ranged character to bait. Use the environment.

Act 2 Bosses: The Difficulty Spike

Ketheric Thorm / Apostle of Myrkul — B Tier

• HP: 210 (Ketheric) + 240 (Myrkul) | Level: 8-9
• Three phases: Rooftop fight → Mind Flayer Colony navigation → Myrkul avatar
• Myrkul gimmick: Cannot move. Bone chill platforms prevent healing. Free Dame Aylin immediately.
• Bring: Radiant damage. Blind spell (Myrkul has low WIS). Stay off bone chill platforms.

Act 3 Bosses: The Gauntlet

Orin the Red — B Tier

• HP: 210 | Level: 11-12
• Gimmick: Unstoppable (10 stacks). Multi-hit attacks (Magic Missile, Eldritch Blast, Fighter) remove stacks.
• Bring: Kill cultists in corners first. Then burst Orin.

Gortash — B Tier

• HP: 250 | Level: 11-12
• Gimmick: Reflectoguard (reflects projectiles). Grenades. Traps.
• Pre-fight: Disable Steel Watch at the Foundry. Makes the fight dramatically easier.
• Bring: Melee damage. Don’t use ranged attacks.

Cazador Szarr — A Tier

• HP: 300+ | Level: 11-12
• Gimmick: Ritual drains Astarion + 7 spawn. Daylight spell trivializes him.
• Bring: Daylight (Cleric level 3 spell). Deals 20 radiant/turn + gives him Disadvantage.

Viconia DeVir — A Tier

• HP: 250+ | Level: 11-12
• Gimmick: 12+ Sharrans spam Darkness everywhere. You can’t see.
• Bring: Daylight (dispels Darkness in 60ft radius). Spirit Guardians. AoE spells.

Ansur (Undead Dragon) — A Tier

• HP: 400 | Level: 12
• Gimmick: Massive lightning breath AoE. Flight.
• Bring: Globe of Invulnerability. Lightning Resistance potions. Radiant damage (undead).

Raphael — S Tier

• HP: 666 | Level: 12
• Gimmick: 4 Soul Pillars make him invulnerable. 6 cambion adds. Hellfire spells.
• Strategy: Destroy pillars with Force damage → Hold Monster (he has +0 WIS save!) → burst.
• Bring: Globe of Invulnerability. Hope’s Divine Intervention. Counterspell.

Netherbrain — S Tier

• HP: 350 | Level: 12
• Gimmick: 5-turn time limit. Platform climb → portal → psyche.
• Strategy: Summon ALL allies. Kill Mind Flayer Arcanists. Use the Netherstones. Burst the brain.
• Bring: ALL your saved scrolls and potions. Force damage. Disintegrate.

Boss Preparation Checklist

Before any major boss fight:

• Long rest (full HP, all spell slots)
• Pre-buff: Heroes’ Feast, Longstrider, Death Ward, Elixirs
• Summons active (elementals, planar allies, undead)
• Potions of Speed on every character
• Scrolls of Revivify distributed across party
• F5 quicksave before the fight