D4 Mantle of Mountain's Fury, Tassets & Cowl: How to Get
Where to farm Mantle of Mountain's Fury, Tassets of the Dawning Sky and Cowl of the Nameless in Diablo 4 Season 15, and what each unique does now.
In Diablo 4 Season 15, community loot tables point to Urivar for Mantle of Mountain's Fury and The Butcher for Cowl of the Nameless, and Tassets of the Dawning Sky has no single boss: it sits in the shared unique pool that most players farm through Lair Bosses and high Torment content. Below is what each item does now and the fastest way to target it.
Quick answer: where each unique drops
Season 15 farming targets
| Unique | Slot and class | Best farm | Cost per run |
|---|---|---|---|
| Mantle of Mountain's Fury | Chest, Barbarian | Urivar (Initiate Lair Boss) | 1 Lair Key |
| Cowl of the Nameless | Helm, Rogue | The Butcher (Greater Lair Boss) | 1 Greater Lair Key |
| Tassets of the Dawning Sky | Pants, all classes | Shared unique pool: any Lair Boss, chests and other endgame activities | Whatever the activity costs |
These boss assignments come from the community loot tables players keep up to date, because Blizzard does not publish a full boss loot list in its patch notes. They match our own Diablo 4 boss loot table. Sources disagree most about Tassets, so read that section before you spend keys on it.
One more rule helps all three: since Season 15, Blizzard lets every unique drop at any level and on any difficulty. Players also find that higher Torment tiers raise drop rates, so push the highest tier you can clear quickly.
Mantle of Mountain's Fury: what it does and how to get it
Mantle of Mountain's Fury is a Barbarian-only chest armor added in patch 2.1.0 with Season 7. Its power connects your two big earth skills: casting Hammer of the Ancients on an Earthquake makes the Earthquake explode for its full damage, and your Hammer of the Ancients hits harder for a short time afterward. Its power has been reworked since 2.1.0, when Hammer of the Ancients made a seismic line instead. Since patch 3.1.0, it rolls a guaranteed Primary Core Stat and ranks to Earthquake skills, and patch 3.2.1 fixed a bug where those Earthquake ranks were not applied.
To farm it, go after Urivar, an Initiate tier Lair Boss in Nahantu. Each run uses one Lair Key, and Lair Bosses need Torment 1 or higher. Urivar has a dedicated table, so the Mantle shares space with other class items rather than the whole unique list.
- Stock Lair Keys before a session. Running out of keys, not boss kill speed, is what slows most farms.
- Kill Urivar at the highest Torment you can clear in well under a minute. More runs beat slightly better odds.
It is the core piece of the Hammer Quake Barbarian, which builds around Hammer of the Ancients and Earthquake. If you play another Barbarian style, it adds little.
Cowl of the Nameless: Rogue helm for Imbuement builds
Cowl of the Nameless is a Rogue-only helm. It used to give Lucky Hit chance against crowd-controlled enemies, but it was reworked with Lord of Hatred. Players now report that it gives Imbued skills a chance on Lucky Hit to set off an explosion that repeats part of the damage and applies the Imbuement effect at higher strength. Since 3.1.0 it rolls a guaranteed Primary Core Stat and ranks to Imbuement skills.
Its farm is The Butcher, now a Greater Lair Boss, and each run costs one Greater Lair Key. Before Lord of Hatred, players farmed it from Duriel and Andariel, so older guides that send you there are out of date.
- Greater Lair Keys are scarcer than normal keys, so plan a longer session of key farming first.
- Pick it up for any Imbuement build, whether Poison, Shadow or Cold; it does little for Rogues who skip Imbuements.
Tassets of the Dawning Sky: why there is no single boss
Tassets of the Dawning Sky are pants any class can wear. When you take non-physical damage, they boost your resistance to that element for a few seconds, one element at a time. Since 3.1.0 they roll a guaranteed Primary Core Stat and All Resistances. They first arrived back in Season 2, when The Beast in the Ice was the farm.
Today the community tables we trust most, including ours, put the Tassets in the shared unique pool. That means any Lair Boss, any chest and most endgame activities can drop them. Some tables also list Mephisto or Astaroth as a source, but they do not agree with each other and this is unconfirmed, so we would not spend rare keys on that claim alone.
- Farm whatever you already run fastest at your highest comfortable Torment tier.
- Keep your normal boss rotation going; every Lair Boss kill is also a roll on the shared pool.
- If you need them for a build and have spare materials, try the Horadric Cube's unique upgrade recipe on a pants base (see below).
They are a defensive leveling and early endgame piece more than a final slot for most builds. Do not burn weeks on them.
Lair Keys, Torment and the Horadric Cube
Lord of Hatred changed boss farming. Most of the old per-boss summoning items were folded into Lair Keys for the Initiate bosses (including Urivar) and Greater Lair Keys for the Greater bosses (including The Butcher). Patch 3.1.0 also renamed the Belial tier item to Superior Lair Key.
The Horadric Cube gives you a backup plan. Its unique upgrade turns a common base item into a random unique of the same slot, so it cannot target one item, but it narrows the pool to that slot. Players also report a recipe that uses Boss Trophies to roll from a specific boss's table. Our Horadric Cube guide walks through the recipes.
Need keys faster? Our Diablo 4 Lair Boss Keys service farms them for you, and Bosses and Tribute Runs can run the kills with you.
Common farming mistakes with these uniques
- Following pre-Lord of Hatred guides. Duriel and Andariel no longer hold the Cowl, and old summoning items were folded into Lair Keys, so older routes waste time.
- Farming on the wrong character. Mantle and Cowl are class items, so run Urivar on your Barbarian and The Butcher on your Rogue.
- Saving keys for a perfect roll at a Torment tier you clear slowly. Fast kills at a slightly lower tier usually give more total drops per hour.
- Spending Greater Lair Keys on the Tassets. They are a shared pool item, so normal farming finds them just as well.
Once you have the item, check its Greater Affixes and the guaranteed rolls before you masterwork it. A copy with the right stats is worth more than a higher item power one with weak rolls, and our Masterworking service can take it the rest of the way.
Season 16 PTR: any changes to these items?
The Season 16 PTR (patch 3.3.0) ran from October 27 to November 3. Blizzard's PTR overview lists changes to other uniques, such as Thundergod's Blessing, Banished Lord's Talisman and Signet of Pelghain, plus new Horadric items. It does not mention these three, and we found no loot table changes for them. Check our Season 16 PTR guide for the wider picture, and expect a recheck when the live Season 16 notes are posted.
Diablo 4 farming services
Diablo 4 Unique & Ancestral Gear
- 16 Named Uniques
- Ancestral Slot & Stat
- Seasonal or Eternal
Diablo 4 Lair Boss Keys
- Exact Key Amounts
- Trade or Piloted
- Seasonal or Eternal
Diablo 4 Bosses & Tribute Runs
- Named Boss & Run Count
- Keys Included for Kills
- Piloted or Self-play
Diablo 4 Mythic Uniques & Runes
- 13 Mythic Uniques
- Crafted or Dropped
- Rune Bundles
Diablo 4 Mantle, Tassets and Cowl FAQ
Where does Mantle of Mountain's Fury drop in Diablo 4?
Community loot tables list Urivar, an Initiate tier Lair Boss, as its dedicated source. Each run costs one Lair Key and needs Torment 1 or higher.
Who drops Cowl of the Nameless?
The Butcher, a Greater Lair Boss, is the listed source since Lord of Hatred. Each run costs one Greater Lair Key. Older guides that name Duriel or Andariel are out of date.
Where do I farm Tassets of the Dawning Sky?
They are in the shared unique pool, so any Lair Boss, chest or high Torment activity can drop them. Some tables also name Mephisto or Astaroth, but no single boss is a confirmed target, so farm whatever you clear fastest.
Is Mantle of Mountain's Fury good?
It is the key chest for Hammer of the Ancients and Earthquake Barbarians, because Hammer detonates your Earthquakes. Other Barbarian builds get little from it.
Can the Horadric Cube make a specific unique?
Not directly. The unique upgrade gives a random unique of the same slot. A boss trophy recipe is reported to roll from one boss's table, which narrows the odds.
Do I need a high Torment tier to get these uniques?
Lair Bosses need Torment 1 or higher, and since Season 15 any unique can drop on any difficulty. Higher Torment improves your odds, so farm the highest tier you clear quickly.
Related guides
For every boss table in one place, see our Diablo 4 boss loot table. Our Diablo 4 gearing guide explains how uniques fit with tempering and masterworking, and the best builds tier list shows which builds want these items. When you need a chase item fast, our Mythic Uniques and Runes service can help.