Time: 2025-11-18
With Diablo 4 Season 10 concluding on December 9th, many players are still facing their greatest challenge: Uber Lilith. Thanks to the removal of boss immunity phases this season, defeating her has become significantly more achievable with the right build. The Flay Barbarian bleed build stands out as one of the most effective boss-killer setups, capable of stacking billions of bleed damage to melt even the game's toughest foe.
This build transforms the Barbarian into a relentless bleeding machine, using Flay as its primary damage source. The skill rapidly applies massive bleed stacks to enemies, while Rupture serves as a utility skill for area clearing and finishing off weakened targets.
Core Combat Mechanics:
Flay: Main damage dealer that stacks enormous bleed damage
Rupture: Excellent for clearing grouped enemies and executing low-health bosses
Rage Management: Maintaining maximum rage is crucial for maximizing critical strike damage
Defensive Core: Iron Skin provides essential survivability with healing and shielding
Active Skills:
Flay (Rank 5) with Enhanced and Battle upgrades
Rupture (Rank 5) with Enhanced and Warrior's upgrades
Iron Skin (Rank 1) with Enhanced and Strategic versions
War Cry (Rank 1) with Enhanced and Power upgrades
Steel Grasp (Rank 1) with Enhanced and Warrior's versions
Wrath of the Berserker (Rank 5) with Prime and Supreme upgrades
Key Passive Skills:
Pressure Point, Warpath, Endless Fury
Gushing Wounds, Heavy Handed, Counteroffensive
Cut to the Bone for additional bleed damage
Core Equipment:
Helm: Harlequin Crest
Chest: Hooves of the Mountain God
Gloves: Locran's Talisman (critical for rage-based damage)
Amulet: Aspect of the Iron Warrior
Rings: Ring of Starless Skies and Aspect of Adaptability
Chaos Perks Selection:
A Beast Cornered: Increased damage when health is low
Raging Chaos: Berserking and fire damage boost
Accelerating Chaos: Cooldown reduction through lucky strikes
Mard Guard: Enhanced survivability below 50% health
While Uber Lilith remains Diablo 4's most challenging boss, the Flay Barbarian build provides the tools needed for victory.
Key Preparation:
Maximum armor and elemental resistances
At least 155% movement speed for mechanic dodging
Multiple Unstoppable sources (War Cry and Wrath of the Berserker)
Fight Strategy:
Prioritize mechanic dodging over damage output, especially wave patterns
Position at the bottom of the arena during wave phases
Use Unstoppable abilities when Lilith attempts to pull you
Maintain constant movement, particularly during triangular wave patterns
With sufficient damage, you can skip phase transitions entirely
The Flay Barbarian bleed build offers one of the most reliable paths to defeating Uber Lilith before Season 10 concludes. Focus on proper gear optimization, master the fight mechanics, and you'll soon claim victory over Sanctuary's ultimate challenge.
For players looking to quickly acquire these essential items, consider visiting MMOMAX to buy Diablo 4 items and complete your build faster.