Confront the Elder Brain

Type Quest
Act Act 3
Location High Hall
Reward  

Confront the Elder Brain is a Quest in Baldur's Gate 3. Confront the Elder Brain can be acquired during 3 and begins after the cutscene featuring the Netherbrain. Completing Quests allows players to learn more about the world and characters in Baldur's Gate 3, as well as earning more loot and experience to become more powerful.

 

Confront the Elder Brain Objectives

Control the Elder Brain
Destroy the Elder Brain
Follow the Chosen to Baldur's Gate.
  • We can thwart the Chosen of the Dead Three by taking control of the elder brain - but will we use that control to liberate or to conquer? Whatever the answer, it lies in Baldur's Gate. 
Obtain the three Netherstones.
Meet Gortash at the Morphic Pool.
Face the elder brain.
Talk to the Emperor.
Get a mind flayer on your side.
Face the Netherbrain again.
Get to the Netherbrain.
Reach the Crown of Karsus.
Enter the portal to the Netherbrain's psyche.
Bring the Netherbrain to heel.

 

 

Confront the Elder Brain Walkthrough

  • After you collected all three Nether stones. You can travel to Morphic Pool from Undercity Ruins.
  • Before you venture to Morphis Pool, make sure you tie all loose ends in Baldur's Gate, and gather all your potential allies:
    • Volo the Bard (Passive: Volo's Guide to Monsters - +2 to all attack rolls, saving throws, and ability checks. You need to save him in Goblin Camp and Lower City Baldur's Gate)
    • Battle-Ready Owlbear and Dammon: Recruit Owlbear Cub in your camp and save Dammon.
    • Barcus Wroot and Wulbren: You can save Barcus Wroot in the Blighted Village in Act 1. You then need to help out the enslaved gnomes when you take on True Soul Nere in Grymforge. Later in Act 2, talk to Barcus Wroot in Last Light Inn, and make sure you rescue Wulbren in Moonrise Towers.
    • Halsin: Rescue Halsin in the Goblin Camp during Act 1, then cure the shadow curse in Act 2. (Passive Spirit of the Land - +1 to all ability scores; +2 meters movement range.)
    • Florrick: Rescue Florrick in Act 3.
    • Isobel: Make sure that Isobel stays alive throughout Act 2 and spare Nightsong.
    • Nightsong: Free and spare Nightsong in the realm beneath the Gauntlet of Shar. Then, in Act 3, defend her against Lorroakan.
    • Mizora: Save her in the Mind Flayer Colony at the end of Act 2.
    • Bhaal's Slayer: Start out with the Dark Urge origin and defeat Orin the Red. When prompted, accept your destiny as Bhaal's Chosen. 
    • Ulma and the Gur: Progress Astarion's personal quest in Cazador's Dungeon. Make Astarion refuse the allure of vampiric ascendancy, and free the captive spawn.
    • Vampire Ascendant Astarion:  In Cazador's Dungeon, allow Astarion to complete the ritual to become a Vampire Ascendant. 
    • Inspector Valeria: Complete the full Murder Mystery story arc in Act 3 and him alive in Murder Tribunal.
    • Jaheira's Harpers: Complete Jaheira's The High Harper quest chain.
    • Duke Ravengard: Save Duke Ravengard in Iron Throne. Wyll does NOT need to accept Mizora's offer.
    • Yurgir: In Act 3 enter the House of Hope and fight Raphael, you have a dialogue option to make him join you temporarily.
    • Lorroakan: Make sure that Nightsong survives Act 2. Then, in Act 3, betray her by handing her over to Lorroakan.
    • Rolan: Make sure Rolan survives Act 1 and Act 3, then, in Act 3 kill Lorroakan and make Rolan owner.
    • Viconia DeVir: Handover Shadowheart to Sharran Cultists in Act 3.
    • Shadowheart: Let Shadowheart kill Nightsong in Act 2. Then, in the House of Grief, help her attain her leadership position in the enclave.
    • Orpheus: Obtain the Orphic Hammer by claiming it from Raphael in Deal with the Devil, or by stealing it in the House of Hope. Then, free him in the Astral Plane.
    • Strange Ox (Need Confirmation): Keep the Ox alive and smuggle him into Baldur's Gate.
    • Kith'rak Voss: progress Lae'zel's personal quest and free Prince Orpheus.
    • Arabella: Save Arabella in Act 1, then find her parents in Act 2, and let her take Wither's advice. In Act 3, find her in city sewers.
    • Nine-Fingers; Help her in the quest Aid the Underduke.
    • The Gondians:  Save the Gondians from Iron Throne and disabled the steel watchers. 
  • In Morphis Pool, fight your way to the Elder Brain. There you will trigger a cut scene with the elder brain, successfully passing the DC99 check will reduce the HP of the Elder Brain by 10% in the final confrontation.
  • After your failed attempt, your team will be teleported to Astral Plane. There you need to decide whether to let Emperor suck Prince Orpheus' brain, or free Orpheus (with the Hammer you get in quest Free Orpheus) and let him or one of your teammates turn into Mind Flayer.
  • Depending on your choice, Emperor or Orpheus will join your team. Now you lead your team all the way to the High Hall. Remember you can now summon as many allies as you want during the fight. But they can only be summoned in battle, and they will not be summoned again once they die.
  • On your way to the Elder Brain, A Nautiloid will aim and bombard the area when you climb the stairs. Stay away from the marked area ASAP to avoid being killed. 
  • If you find the fight in High Hall courtyard too diffcult, you can use the Upper City Sewer, which provides you a short cut to High Hall, guarded by Death Knight Stalker Svignee and some other enemies.
    entrance to upper city sewers final release bg3 wiki guide min
    (The entrance to the Upper City Sewers a Metal Door at X264, Y128.)
  • When you reach on top of Elder Brain, you need to defeat the enemies and get close enough to Karsus' Crown to cast the control spell. You need to protect the caster in the meantime. 
  • Successfully casting the spell opens the portal to Elder Brain, you need to kill it before it breaks from the spells (4 turns). Note that once damaged the Elder Brain releases a psychic shockwave, don't forget to use psychic resistance potions and heal your teammates.

 

 How to unlock Confront the Elder Brain

  • Auto acquired.

 

Confront the Elder Brain Rewards

  • Rewards

 

Confront the Elder Brain Notes & Tips

  • Notes & tips go here

 

 
All Quests in Baldur's Gate 3
Acquire the Gauntlets for Helsik  ♦  Aid the Underduke  ♦  Ask the Goblin Priestess for Help  ♦  Avenge Glut's Circle  ♦  Avenge the Drowned  ♦  Avenge the Hag Survivors  ♦  Avenge the Ironhands  ♦  Blind the Absolute  ♦  Break Yurgi's Contract  ♦  Break Yurgir's Contract  ♦  Call of the Blood  ♦  Capture Isobel the Selunite Cleric  ♦  Consider Gortash's Bargain  ♦  Control the Elder Brain  ♦  Cure the Poisoned Gnome  ♦  Deal with the Devil  ♦  Deal with the Gnomes  ♦  Defeat Ketheric Thorm  ♦  Defeat Mystic Carrion  ♦  Defeat the Duergar Intruders  ♦  Defeat the Goblins  ♦  Deliver Nere's Head  ♦  Destroy the Ancient Tome  ♦  Destroy the Elder Brain  ♦  Disable the Steel Watch  ♦  Discover the Artefact's Secrets  ♦  Discover the History of Prince Orpheus  ♦  Embrace Your Potential  ♦  Escape the Deal  ♦  Escape the Nautiloid  ♦  Explore the ruins  ♦  Feed the Mind Flayer  ♦  Find a Cure  ♦  Find a way into Wyrm's Rock fortress  ♦  Find Arabella's Parents  ♦  Find Doni  ♦  Find Dribbles the Clown  ♦  Find Explosives  ♦  Find Ketheric Thorm's Relic  ♦  Find Mol  ♦  Find Mystic Carrion's Servant  ♦  Find Rolan in the Shadows  ♦  Find the 'Stern Librarian' Ffion  ♦  Find the Blood of Lathander  ♦  Find the Githyanki Creche  ♦  Find The Missing Boots  ♦  Find the Missing Letters  ♦  Find the Missing Shipment  ♦  Find the Mushroom Picker  ♦  Find the Nightsong  ♦  Find your belongings  ♦  Find Zevlor  ♦  Finish the Masterwork weapon  ♦  Follow the Convoy  ♦  Forging a Heart  ♦  Free Counsellor Florrick  ♦  Free Lae'zel  ♦  Free Orpheus  ♦  Free the artist  ♦  Free True Soul Nere  ♦  Fulfill the Deal  ♦  Gather Your Allies  ♦  Get Gortash's Netherstone  ♦  Get Help from Auntie Ethel  ♦  Get Help from Healer Nettie  ♦  Get Orin's Netherstone  ♦  Get Past the Rubble  ♦  Help Kith'rak Voss  ♦  Help Omeluum Investigate the Parasite  ♦  Help the Cursed Monk  ♦  Help the Devilish Ox  ♦  Help the Hag Survivors  ♦  Help Your Protector  ♦  Hunt the Devil  ♦  Impress the Murder Tribunal  ♦  Infiltrate Moonrise Towers  ♦  Investigate Cazador's Palace  ♦  Investigate Kagha  ♦  Investigate the Beach  ♦  Investigate the House of Grief  ♦  Investigate the Murders  ♦  Investigate the Selunite Resistance  ♦  Investigate the Suspicious Toys  ♦  Kill Kagha  ♦  Kill Raphael's Old Enemy  ♦  Lift the Shadow Curse  ♦  Open your Scars  ♦  Protect the Myconid Circle  ♦  Punish the Wicked  ♦  Raid the Emerald Grove  ♦  Raid the Grove  ♦  Remove the Parasite  ♦  Rescue Orin's Victim  ♦  Rescue the Druid Halsin  ♦  Rescue the gnome  ♦  Rescue the Gnomes in Moonrise Towers  ♦  Rescue the Grand Duke  ♦  Rescue the Illithid's Captive  ♦  Rescue the survivors  ♦  Rescue the Tieflings  ♦  Rescue the Trapped Man  ♦  Rescue Volo  ♦  Rescue Wulbren  ♦  Resolve the Abduction  ♦  Retrieve Omeluum  ♦  Return Rakath's Gold  ♦  Return the Locket  ♦  Roveer's Storehouse  ♦  Save Arabella  ♦  Save Hope  ♦  Save Mayrina  ♦  Save the First Druid  ♦  Save the Goblin Sazza  ♦  Save the Gondians  ♦  Save the Grymforge Gnomes  ♦  Save the refugees  ♦  Save Vanra  ♦  Search the Cellar  ♦  Seek Protection from the Shadow Curse  ♦  Servant of None  ♦  Soft-Step Trial  ♦  Solve the Open Hand Temple Murders  ♦  Steal a Githyanki Egg  ♦  Steal the Sacred Idol  ♦  Stop the Presses  ♦  Surrender Shadowheart to Viconia  ♦  Talk to the Sentient Amulet  ♦  The Adamantine Forge  ♦  The Dark Cleric  ♦  The Knights of Shield  ♦  The Ritual  ♦  Travel through the Mountain Pass  ♦  Travel through the Underdark  ♦  Travel to Moonrise Towers  ♦  Unlock the Ancient Tome  ♦  Visit the Emperor's Old Hideout  ♦  Wake up Art Cullagh

 




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    • Anonymous

      "Strange Ox (Need Confirmation)" - can indeed confirm he joins you in battle if you bring him to Baldurs Gate in act 3.
      Another ally who will join you is Mol if you give her the contract with Raphael found at the House of Hope.

      • Anonymous

        If you don't free orpheus you can still convince voss to help you fight the brain. He needs to be waiting at the sewers, then when you go to fight the brain for the first time he'll be there.

        • Anonymous

          Use the healing puddle from a water myrmidon in the centre of the brain room (final fight) and then hit the dragon with chain lightning. Chunks it and everything around it.

          A water bottle or create water would do too, just anything that gives a good bunch of enemies in the centre the "wet" condition.

          • Anonymous

            My advice is, don't bother with enemies in the final two phases of this 'battle', that is, when the Nautiloids start targeting you, the amount of enemies that will spawn is infinite. Wish I knew that, before using TWO globes of invulnerability! And the battle after this, with the dragon, just use Arcane Gate or Dimensional Door. You can get right to the crown in the first turn by taking a Dimensional door (with the Emperor) more than halfway there, and then have him fly up to the crown.

            Also Shadowheart can cast Sanctuary on him, which should keep him alive (they might still use an area of effect spell or two on him). Mind you, I thought this alone was enough for victory, so I had everyone else battling away, trying to run distraction. Uhh no. You want to get at least one more party member, preferably two, into the portal that opens. I had ONE potion of speed remaining and it was a no brainer to give it to my Paladin, and I was able to take down almost all the brain's health in one turn.

            Oh yeah, elixir of universal resistance (I had 3 left), just before ascending the brain stem for this battle, and potion of angelic slumber to reset your spell slots (I only had two, but that was plenty).

            I kept my Paladin oath the entire playthrough (alright, I had to pay to get it back but only twice!) and then took control of the Brain alongside The Emperor. Why is this considered 'bad'? Also destroyed the githyanki army. Seems like a pretty good ending to me. Shadowheart and I lived happily ever after!

            • Anonymous

              Cloud of Daggers seems to constantly tick damage on the Unbreakable Will of the Elder Brain, even without passing turns.

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