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Season 8 of Diablo 4 introduces 24 powerful Boss Powers you can unlock by defeating bosses across Sanctuary. These Powers provide huge bonuses to your builds and playstyles, letting you unleash devastating abilities. Here's a full guide to every Boss Power, how to get them, and what they do.

World Boss Powers

Wandering Death's Chest Beam

Obtained by: Defeating Wandering Death

·Main: While channeling a skill, spawn a beam that deals 300% Frostbite damage per second. Enemies hit take 50%[x] increased damage from you for 1 second.

·Modifier: Instantly execute non-boss enemies below 15.5% Life, and gain 25 Primary Resource on execution.

Ashava's Poison Breath

Obtained by: Defeating Ashava

·Main: Hitting an enemy affected by DoT spawns a wave of acid, dealing 1200% Poisoning damage over 4 seconds. Applies 10% more Poisoning per 1% of the enemy's Life affected by DoT.

·Modifier: Once per activation, the Poison Breath also applies 45% Poisoning damage over 3 seconds.

Avarice's Explosive Ore

Obtained by: Defeating Avarice the Gold-Cursed

·Main: Gaining excess Primary Resource spawns Ore that explodes after 2.5 seconds for 700% Fire damage (up to 3 Ores at once).

·Modifier: Spending Primary Resource increases the Ore explosion damage by 0.01%[x] per Resource point spent.

Apparition Incursion Boss Powers

Allek's Talons

·Main: Casting a Basic Skill applies 200% Sparking damage over 4 seconds to enemies hit.

·Modifier: Gain 5% Movement Speed, increased by 0.5% per 1% Cooldown Reduction (up to 11%).

Beastmaster's Training

·Main: Casting a Summon Skill or Reinforcing a Mercenary causes a 2-second Stun and grants 75% Damage Reduction.

·Modifier: Summons deal 5%[x] more damage, scaling with Bonus Crit Damage (up to 17%[x]).

Blackmailer's Sabotage

·Main: Casting a Core Skill while under a Barrier Knocks Down Close enemies for 1.1 seconds (5s cooldown per target).

·Modifier: Gaining Fortify also grants 11% Barrier for 6 seconds.

Flesh Reaper's Disruption

·Main: Damaging a Vulnerable enemy removes the Vulnerable, stuns them and surrounding enemies for 0.5 seconds. Doubles Stagger on Bosses.

·Modifier: Gain 5%[x] Vulnerable Damage, scaling with Crowd Control Duration Bonus (up to 10.5%[x]).

Hatred's Embrace's Haste

·Main: Casting Shadow or Fire skills grants 1.1% Movement Speed for 3 seconds, stacking to 11%.

·Modifier: Gain 5%[+] Critical Strike Chance, boosted by Shadow Resistance (up to 12%[+]).

Kirma's Sparks

·Main: Evading applies 200% Sparking damage over 4 seconds to close enemies.

·Modifier: Evade Cooldown is reduced by 5%, scaling with Lightning Resistance (up to 11%).

Outlaw Sharpshooter's Eye

·Main: Dealing Direct Damage to Distant enemies slows them by 40% for 5 seconds.

·Modifier: Deal up to 10.5%[x] increased damage the farther enemies are.

Sinerat's Flames

·Main: Using a Mobility Skill Burns Close enemies for 50% Burning damage over 4 seconds.

·Modifier: Gain 5%[x] increased Elemental Damage, scaling up to 15.5%[x] with Elemental Resistances.

Skerg's Toxins

·Main: When hit by an enemy, 600% poisoning damage is applied over 4 seconds to them.

·Modifier: Taking DoT has a chance to heal you, improved by Poison Resistance (up to 12%).

Torusk's Rage

·Main: Hitting a Crowd Controlled enemy makes them Unstoppable but gives you 10.5%[x] bonus Damage, Attack Speed, and Movement Speed for 3 seconds.

·Modifier: Gain 5%[+] Attack Speed, scaling with Damage to Crowd Controlled Enemies (up to 10.5%[+]).

Special Boss Powers (Torment I+ Difficulty Required)

Belial's Crystal Decoy

·Main: Casting an Agility, Defensive, or Macabre skill spawns a Taunting crystal that explodes for 600% Shadow damage.

·Modifier: Activating this Power Fears Nearby enemies and deals 50% Shadow damage.

Lilith's Wind of Hate

·Main: Casting a skill spawns waves of spikes, dealing 400% Physical damage. Enemies take up to 300%[x] more damage from repeated hits.

·Modifier: Hitting Elites spawns Blister Clones that sap their health.

Duriel's Burrow

·Main: Evading burrows you underground, immobilizing enemies, and dealing constant damage.

·Modifier: Gain 21%[+] Dodge chance for 5 seconds; dodging immobilizes enemies.

Belial's Eye Beams

·Main: After drinking a potion, gain 50% Damage Reduction, summon Eye Beams for 438% damage, but the potion becomes disabled for 5s.

·Modifier: Grants Stealth and bonus Overpower Damage briefly.

Andariel's Flaming Skull

·Main: Standing still summons a rotating, fire-breathing skull, dealing 450% Burning damage.

·Modifier: Enemies take 10.5% more Damage over Time.

Beast in the Ice's Sleet

·Main: Casting 3 CC skills unleashes sleet spikes, dealing 800% Cold damage and Freezing for 2 seconds.

·Modifier: Main Power Chills enemies further.

Grigoire's Lightning Square

·Main: To buy Diablo 4 Items and cast a Core Skill that spawns a lightning tile, dealing 250% Lightning damage.

·Modifier: Once per activation, Stuns enemies hit.

Lord Zir's Blood Pool

·Main: Damaging enemies spawns blood poo, ls dealing 400% Bleeding damage/sec (up to 3 pools).

·Modifier: Activating this Power Heals you for 17% Maximum Life over 3 seconds.

Varshan's Life Steal

·Main: Every second, latch onto the nearest enemy with a leech beam, dealing 700% Corrupting damage and healing 15% Max Life.

·Modifier: Activating it inflicts 200% Corrupting damage over 2 seconds.

Vessel of Hatred Expansion Boss Powers

Urivar's Lobbed Bombs

·Main: After casting an Ultimate, lob 4 bombs dealing 400% Fire damage.

·Modifier: Killing enemies with the Power reduces the UltimateCooldown.

Harbinger of Hatred's Volley

·Main: Hitting Vulnerable enemies shoots piercing projectiles, dealing 250% Fire damage.

·Modifier: Spending all Diablo 4 gold on a Basic Skill makes enemies Vulnerable and grants bonus Vulnerable Damage.

Summary

These 24 Boss Powers offer some of the most impactful effects in Diablo 4 Season 8. Whether you focus on burst damage, survivability, or mobility, mastering the bosses and unlocking these abilities will take your character to the next level.