Who is Bartuc in Diablo IV?

Bartuc, Warlord of Chaos — the alternative end-boss of Infernal Hordes unlocked by spending 666+ Burning Aether before the final chest. Added in Season 10. Replaced the default Fell Council encounter.

Diablo IV

Q: What are Chaos Perks?

Season 10's seasonal system (September-December 2025). 16 Chaos Perks per class across four rarities (Magic/Rare/Legendary/Unique). Unique Perks reshaped build identity. Chaos Rifts in Helltides and Nightmare Dungeons awarded Infernal Warps to upgrade Perks.

Q: What is Chaos Armor?

Enhanced uniques introduced in Season 10. Occupied non-traditional slots enabling cross-slot synergies. Always rolled at maximum item power with at least 1 Greater Affix — effectively Chaos Armor was the most reliable top-tier drop in the game that season.

Season 14 · Patch 3.1.2

Diablo IV Season 10 (September 2025) archive. Chaos Perks, Chaos Armor, Bartuc boss, unique-driven meta, Chaos Monsters.

Season Archive Sep 23 → Dec 11, 2025

Season 10 — Infernal Chaos

Unique-defined identity. Historical archive.

Season 10 — Infernal Chaos — pivoted the meta away from stacking Legendary Aspects toward build identity defined by Unique Perks and Chaos Armor. Bartuc, Warlord of Chaos joined Infernal Hordes as an alternative boss. The season was widely praised for its build-crafting flexibility.

Seasonal Mechanic — Chaos Perks

16 Chaos Perks per class across four rarities: Magic, Rare, Legendary, Unique. Unique Perks reshaped build identity — some were build-defining. Chaos Rifts in Helltides + NMDs awarded Infernal Warps to upgrade Perks.

Chaos Armor

Enhanced uniques occupying non-traditional slots, enabling cross-slot synergies. Always rolled at maximum item power with at least 1 Greater Affix. This made Chaos Armor the most reliably powerful drop source of the season.

Bartuc, Warlord of Chaos

Alternative boss for Infernal Hordes end-encounters, unlocked by banking 666+ Burning Aether before the final chest. New Chaos Monster family granted shrine-like buffs on death, rewarding aggressive farming.

Top Meta Builds

◆ Ice Hydra Sorcerer (top-tier)
◆ Payback Spiritborn (emerging strong)
◆ Summon Necromancer (excellent at Bartuc farm)
◆ Bash Barbarian
◆ Cataclysm Druid (late-meta rise)

Battle Pass Changes

Four Reliquary tracks: Infernal Chaos (free), Weapons (200 Platinum), Beasts (500 Plat), Armor (800 Plat). This granular structure let players buy into only the tracks they wanted.