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There is no shortage of magical and fantastical weapons inBaldur’s Gate 3,and it’s no surprise when the foundations of Larian Studios' magnum opus have been built on Dungeons and Dragons. The Mourning Frost Staff is one such quarterstaff that you’d be smart to acquire or, should we say, build.
Deep in the Underdark, you’ll discover a world built on centuries of history, from torrential diplomacy between the Duergar and Deep Gnomes to artifacts woven with the weave of magic. If you’ve spent time exploring the Underdark, you may have picked up one of these Mourning Frost components. The Mourning Frost is perfect for any mage seeking to wield the power of ice magic.
Updated on July 07, 2025, by Eva Csaki:Larian Studios, true to their word, continues to update Baldur’s Gate 3 as frequently as possible. To keep up with the fast- and ever-changing new additions to the game, we, too, are updating our guides. We’ve re-vamped this guide to bring you more information on how to defeat the bosses in the Mourning Frost questline, as well as some extra tips and tricks to help you as you journey through the Underdark.
What Is The Mourning Frost
TheMourning Frostis aquarterstaffthat grants you the ability to cast theRay of Frostcantrip.
In close combat, the staff can be used totopple your opponentand deal a standard1d6 bludgeoning damage(upgraded to1d8when wielding the staffwith two hands). Additionally, the Mourning Frost inflicts an extra1d4 cold damage.
The synergy of ice spells makes this quarterstaff shine with an icy sheen.
TheChilledeffect hinders the struck foe withvulnerability to cold damagebut at the cost of increased fire resistance.Avoid usingspells and attacks that inflictfire damagewhile using the Mourning Frost quarterstaff.
The Mourning Staff is a must-have for any aspiring Cyromancers who want to get themost out of their frost spells.Here are a fewspell suggestionsthat pair well with the Mourning Frost:
You can reach up tolevel sevenin Act One.
Where To Find The Mourning Frost Components
To craft the Mourning Frost, you mustretrieve the following components from the Underdark:
Once you have all three Mourning Frost components, you cancombine them in your inventoryto craft the staff.
To combinethe Mourning Frost components, open your inventory andselect oneof the items. It doesn’t matter which one. In thedrop-down menu, there will be an option that says’Combine'.
Selecting combine will open the combination screen in which you canplace the components in any order. Once you haveinputted all three components,you are ready to hit thecombine button.
You must haveall three componentsin your player’s inventory to combine them.
How To Get The Icy Helve
Killing the Spectator is no easy task, and we highly recommend yourest before fighting it.
Found by walking through thebroken window of theSelunite Outpostnear theShattered Sanctum’s entrance to the Underdark, the Spectator willcatch your party off guardand gain initiative over your surprised team.
The Spectator is a tough battle if you’re not prepared, as it has a range ofhigh-damage ray attacksthat will impede your damage output. You will have toset up buffsand be ready to help your fallen companions while whittling down the enemy’s health.
TheBless,Resistance,Beacon of Hope, andWarding Bondspells willincrease your resistanceto the Spectator’s attacks. Therefore, it’s recommended tobring a clericlike Shadowheart along with you in this fight.
Warding Bondis a level two Abjuration spell that gives an ally resistance to all damage types, and a +1 to Armor Class and Saving Throws. However, every time the warded ally takes damage, the spellcaster will take that damage instead.
In each round of the fight, the Spectator willfree the petrified statues to fight for it. If you do not want to kill the drow, you can try tofree themfrom the Spectator’s mind control. Sometimes,shoving an opponent or allywill break them out of the spell, but it may also down them.
If you want to use the environment to your advantage, trycasting fire spells at the Torchstalkmushrooms in the area orshoving your opponentsinto them. Setting off the Torchstalks is a good way to inflict widespread damage.
Once you kill the Spectator,Dhourn, one of the drow searching for the Adamantine Forge, will thank you for saving him; however, he will likely attack you afterward, allowing you toloot the Icy Helve from his corpse.
If you areplaying as a drow,you will havespecial dialogue choiceswhen speaking to Dhourn. Adrow female, for instance, can convince (read: threaten) Dhourn intohanding over his memory shardand giving information about the Adamantine Forge.
If Dhourn or the other drow are not un-petrified by the Spectator during the fight, you can useBasilisk Oil to cure them, at which point you will be able to speak to, pick-pocket, or kill them. Youcannot pickpocketpetrified people.
You can also sneak into the battle area anduse the Basilisk oil on Dhourn before the fight. He’ll become un-petrified andfight for you, but you will still wake the Spectator.Stealthing into the fight, however, will eliminate the Spectator’s ambush advantage.
How To Get The Icy Crystal
You will fightFilro the Forgottenduring the Adamantine Forge quest, along with a pack of Hook Horrors.
Filro will have an elevation advantage over you when you begin the fight. We suggest that youtake out one Hook Horror at a timeand be careful not to aggro more Hook Horrors into the fight.
You canblast a Hook Horror from the Sussur Treebranches using a spell with aknockback effect. Eldritch Blast is ideal due to its range.
Since you have access to the Sussur Tree’s branches, try toclimb or teleport up to a higher elevationand gain thehigh-ground advantageon the hook horrors.
If you have a character who can castDominate Beastorcommand enemiesto fight for you, you can turn theHook Horrors into alliesfor the duration of your effect. Tryreanimating a Hook Horrorcorpse, too. If you are successful, you’ll have a beefy ally at your disposal.
If you haveSovereign Glutin your party, you can also use his ability,Animating Sporesto resurrect a Hook Horror corpse and have it fight on your side.
Once the battle is over, you can loot theIcy Crystalfrom Filro’s corpse.
How To Get The Icy Metal
The Icy Metal is the final piece to complete the Mourning Frost quarterstaff. To obtain it, you will need tobefriend the Myconids in the Myconid Colony to unlock the Myconid Colony Vault.
To do this, speak tothe Sovereign,the leader of the Myconids. The Sovereign will ask you to wipe out theduergar in the Decrepit Village, followed byNere, a True Soul drowfound across the lake. Youonly need to kill the duergarleader to unlock thevault.
Before you kill the duergar in the Decrepit Village,talk to Thullathe gnome in the Myconid colony. Defeating the village duergar will also give you the ‘Duergar Antidote’which you need to close out part ofThulla’s quest.
When you approach the duergar, they willambush you. If you want to get a jump on them, trysneaking into the Decrepit Village. You can alsosplit your partyand position them in areas ofhigh groundand have them stealth into the fight with range attacks gradually.
Use height to your advantage, but bewary of standing too close to an edge. There arethree duergaralready inhigh-ground positions.If you manage to sneak up on them, you canknock them over the edge, but if you’re not careful, they can do the same to you.
Knocking your opponents off of the village ledges is thebest wayto whittle away at their health and win the fight.
Gekh Coal, the duergar leader will becomeinvisibleat some point during the fight, so it’s worth it to have a character in your party who cansee invisibilityor to use spells that will uncover him when cast.
Coming upbehind Lurganwilleliminate the ambusheffects, but if you do not pass thepassive perception check, it will also force you into the fight anyway.
When you’ve defeated the duergar, return to the vault next toDerryth Bonecloaks’s campin the colony. It will only open once you’ve completed the prerequisite objectives.
