Below is a clear, simplified breakdown of the new Season 11 boss changes, the updated loot system, and summarized loot tables for key bosses including Bartuc, the Infernal Hordes, the Lair Bosses, Varshan, Beast in the Ice, Grigoire, Urivar, and more.
Season 11 Boss, Loot, and Drop Rate Changes
Bosses Die Faster – Up to 60% Less Health
Most major bosses across The Pit, The Tower, Lairs, and endgame encounters have had their HP reduced by as much as 60%. This drastically cuts down fight length and makes farming much faster.
New & Reworked Boss Encounters
Season 11 adds new twists to familiar enemies and introduces entirely new threats:
· Azmodan was added as a World Boss with unique mechanics.
· Duriel now appears in Helltides, accompanied by new demonic minions.
· Bile now invades The Pit when certain eyes are destroyed.
· Andariel gains a new final form in Carass Unity, corrupting spirit beacons.
· Lesser Evil Invasions temporarily replace certain bosses.
· The Tower, a new multi-stage endgame dungeon with timed progression and leaderboard support, now ends with a unique boss fight.
Mythic Uniques – Best-in-Slot Gear
Mythic Uniques have become the centerpiece of Season 11 endgame loot:
· 1.5% Dianblo 4 items drop chance per kill from Tormented Bosses, Duriel, and Andariel.
· Five attempts per run, making a full run equal to roughly 7.4% total chance.
· Mythics always drop with:
· Max item power (925)
· Max rolls / Greater Affixes
· Mythics can also be crafted using Resplendent Sparks.
Loot System Improvements
Season 11 further improves itemization:
· All items now roll four affixes.
· Affix ranges are higher and more consistent.
· Players can choose tempering bonuses instead of relying on random rolls.
· Bosses have become the most efficient way to farm high-end gear.
Endgame Farming in Season 11
Why Boss Farming Is Better
· Reduced HP = faster kills
· Repeat attempts per session
· Highest Mythic drop chances
· Bosses now frequently drop top-tier gear with improved affixes
Pit & Tower Enhancements
Both The Pit and The Tower now grant:
· Greater XP and glyph progress
· Additional chances at Mythics from boss encounters
· Optional bosses like Bile appearing for bonus rewards
Future Update Preview
Summoning Dianblo 4 materials may become a currency later in the season to ease boss access and reduce inventory management.
Bartuc, Lord of Chaos – Season 11 Loot Overview
Bartuc returns from Diablo 2 as the core Infernal Hordes boss. His fight features Chaos Portals, dangerous AoEs, and multi-phase mechanics. Choosing to fight Bartuc at the end of the Hordes grants guaranteed high-value rewards.
Bartuc Guaranteed Drops (Torment Difficulty)
· Chaos Armor (random variant)
· Unique Chaos Perks
· 75 Burning Aether
· 4 Scrolls of Restoration
· ~7000 Obducite
· ~425 Infernal Warp
· ~15 million Gold
· 440,000 Gem Fragments
· Guaranteed Unique & Legendary items
· Cosmetic reward (TBC)
Bartuc Requirements
· World Tier: Torment 1+
· Location: Infernal Hordes
· Summon Item: Infernal Hordes Compass
· Elements: Fire, Lightning, Shadow
Season 11 Lair Bosses – Simplified Loot Overview
Lair Bosses form the entry tier of the new Boss Ladder system. They can be fought frequently and drop Lair Keys to unlock higher-tier Hoard chests. They also have chances to drop Mythic Uniques and may trigger Belial ambushes.
Below is a streamlined summary of the key Lair boss loot.
Urivar – Loot Summary
Materials:
· Abhorrent Heart (Guaranteed)
· Stygian Stone (Rare)
Mythic Unique Chance:
4.5% per Mythic across the full pool (e.g., Harlequin Crest, The Grandfather, Melted Heart of Selig)
General Unique Drops:
Moderate to high chances on many class-specific and cross-class
Uniques including:
· Frostburn
· Paingorger’s Gauntlets
· Windforce
· Ring of the Ravenous
· Greatstaff of the Crone
· Storm’s Companion
· Bloodless Scream
…and many others.
Cosmetic:
Guaranteed cosmetic reward after kill.
Requirements:
· World Tier Torment 1–4
· Location: Fields of Judgement (Nahantu)
· Materials: 12x Judicator’s Mask
Grigoire, The Galvanic Saint – Loot Summary
Materials:
· Shards of Agony
· Stygian Stone
Mythic Uniques:
2.25% per Mythic across the entire Mythic pool.
Unique Drops:
Includes many high-tier items such as:
· Endurant Faith
· Penitent Greaves
· Battle Trance
· Rage of Harrogath
· Howl from Below
· Grasp of Shadow
· Staff of Lam Esen
· Iceheart Brais
· Flameweaver
Cosmetic Reward:
· Demonbinder Mount Armor (100% drop rate)
Requirements:
· Requires completing a Helltide
· Summon with 12x Living Steel
The Beast in the Ice – Loot Summary
Materials:
· Pincushioned Doll
· Stygian Stone
Mythic Drop Chance:
2.25% per Mythic
Notable Uniques:
· Fists of Fate
· Tassets of the Dawning Sky
· Ring of the Ravenous
· Mantle of the Mountain’s Fury
· Eaglehorn
· The Oculus
· Starfall Coronet
· Wound Drinker
· Scorn of the Earth
Cosmetics:
· Skull Torch
· Binding the Fell Steed
Requirements:
· Tier 30+ Nightmare Dungeon completion
· Summoned at Glacial Fissure
Echo of Varshan – Loot Summary
Materials:
· Shards of Agony
· Stygian Stone
Mythic Unique Chance:
2.25% per Mythic
Notable Uniques:
· Rakanoth’s Wake
· Mother’s Embrace
· Ring of Writhing Moon
· Sabre of Tsasgal
· Fields of Crimson
· 100,000 Steps
· Mad Wolf’s Glee
· Greatstaff of the Crone
Requirements:
· Summoned using boss materials
· Standard Lair location
World Boss Loot Overview
Season 11 world bosses share a unified drop system with added chances for Mythics and improved reward pools.
World Bosses in Season 11
· Azmodan (new)
· Ashava
· Avarice
· Wandering Death
Each world boss drops:
· High-tier Legendaries
· Summoning mats
· Chance at Mythics (lower than Lair/Tormented bosses)
· Gold and consumables
Main Campaign Bosses (Lilith, Astaroth)
While not core to the Boss Ladder, these bosses still drop:
· Class-specific Legendaries
· Seasonal crafting mats
· Small chance at global Uniques
· Components for boss summoning
Conclusion
Diablo 4 Season 11 brings massive improvements to boss fights, item progression, and endgame rewards. With simplified access, clearer progression, and more consistent loot, Season 11 is shaping up to be the most rewarding season for boss hunters and endgame grinders in Diablo 4.