In Diablo 4, players can target farm Uniques, including Mythic Uniques, by defeating specific Lair Bosses. Below, we will cover which bosses drop which Uniques and how to spawn them. You will also find details on cosmetic rewards and links to dedicated guides for each Lair Boss.
Lair Bosses
Lair Bosses are the best way to farm Uniques efficiently. You can fight them once you enter Torment I, with higher difficulties offering better chances for Ancestral Uniques. Keep in mind that Duriel, Andariel, and the Harbinger of Hatred have twice the drop rate for Mythic Uniques compared to other Lair Bosses. Belial guarantees an Ancestral Unique drop in his loot, and has the highest Mythic Unique drop chance of all Lair Bosses.
Grigoire, The Galvanic Saint
Where: Hall of Penitent in Dry Steppes
Materials: 1x
Lair Key
Cosmetics: Demonbinder Mount Armor (account bound)
Demonbinder Mount Armor:

The Beast in the Ice
Where: Glacial Fissure in Fractured Peaks
Materials: x1
Lair Key
Cosmetics: The Skull Torch and Fell Steed Mount Trophies (account bound)
The Skull Torch and Fell Steed Mount Trophies:

Varshan
Where: Malignant Burrow in Hawezar (near the Tree of Whispers)
Materials: x1
Lair Key
Cosmetics: Flesh-weld Rod Mount Trophy (account bound)
Flesh-weld Rod Mount Trophy:

Lord Zir
Where: The Darkened Way in Fractured Peaks
Materials: x1
Lair Key
Cosmetics: The Diadem of the Ancient Helm (account bound)
The Diadem of the Ancient Helm:

Urivar
Requirement: Vessel of Hatred Expansion
Where: Fields of Judgement in Nahantu
Materials: x1
Lair Key
Greater and Exalted Lair Bosses: Duriel, Andariel, Harbinger of Hatred, and Belial
For a more detailed page on how to farm Mythic Uniques, check out our dedicated guide:
Duriel
Where: Gaping Crevasse in Kehjistan
Materials: x1
Greater Lair Key
Cosmetics: Smouldering Brimstone Mount (account bound)
Andariel
Where: Hanged Man’s Hall in Kehjistan
Materials: x1
Greater Lair Key
Cosmetics: Smouldering Brimstone Mount (account bound)
Harbinger of Hatred
Requirement: Vessel of Hatred Expansion
Where: Harbinger’s Den in Nahantu
Materials: x1
Greater Lair Key
Bloody Butcher
Requirement: Vessel of Hatred Expansion
Where: The Broiler in Gea Kul
Materials: x1
Greater Lair Key
| All Classes: | |
| Barbarian: Druid: Necromancer: | |
| Sorcerer: Rogue: Spiritborn: | |
| Paladin: | |
| Warlock: |
Belial
Where: Palace of the Deceiver in Kehjistan
Materials: 2x
Betrayer’s Husk (drops from Belial’s Ambush)
Belial’s loot is unique as you can decide which boss’ loot pool to target before opening the chest.
Bartuc
Where: Activity
Materials: x1
Infernal Compass
| All Classes: | ||
| Barbarian: Druid: Necromancer: | ||
| Sorcerer: Rogue: Spiritborn: | ||
| Paladin: | ||
| Warlock: |
Smouldering Brimstone Mount: Duriel

Good luck farming your Uniques! Before taking on Lair Bosses, make sure to check which Uniques are best for your build so you can target the right bosses.

