Chaos damage

Chaos Damage is one of the 5 Damage Types. It is the rarest damage type and the hardest to get Resistance against. Chaos damage ignores energy shield, reducing life directly. One can become immune to Chaos Damage with the Chaos Inoculation Keystone Passive.

One source of chaos damage is the Poison status ailment.

Passives

These passives increase Chaos Damage directly:

These passives affect Chaos Damage in miscellaneous ways:

Skills

• Dexterity: Blood Rage, , Viper Strike,

Unique items

There are several unique items that increase your Chaos Damage.

• BlackheartBlackheart
  Iron RingAdds 1 to 4 Physical Damage to AttacksAdds (10-15) to (20-25) Chaos Damage to Attacks
  Regenerate (10-15) Life per second
  10% chance to Cause Monsters to FleeFear is highly infectious.
• Rebuke of the VaalRebuke of the Vaal
  Vaal BladeOne Handed Sword
  Physical Damage: (95-144) to (187-226)
  Elemental Damage: (49-98) to (101-140), (49-98) to (101-140), 1 to (210-250)
  Chaos Damage: (49-98) to (101-140)
  Critical Strike Chance: 5.00%
  Attacks per Second: (1.43-1.56)
  Weapon Range: 1.1 metresRequires Level 64, 113 Str, 113 Dex+460 to Accuracy RatingAdds (49-98) to (101-140) Physical Damage
  Adds (49-98) to (101-140) Fire Damage
  Adds (49-98) to (101-140) Cold Damage
  Adds 1 to (210-250) Lightning Damage
  Adds (49-98) to (101-140) Chaos Damage
  (10-20)% increased Attack SpeedThough the Vaal revered peace, it would have
  been suicide for any culture to rouse them to war.
  - Icius Perandus, Scholar to the Empire.
• Infernal MantleInfernal Mantle
  Widowsilk RobeEnergy Shield: (345-470)
  Movement Speed: -3%Requires Level 65, 187 Int+3 to Level of Socketed Fire Gems
  100% increased Global Critical Strike Chance
  (120-160)% increased Energy Shield
  15% of Fire Damage Converted to Chaos Damage
  100% increased Spell Damage taken when on Low ManaDespair hums, softly, deadly, in the bones of my enemies.
  Eyes will burn, and souls wither, as they bask in my radiance.
• The CovenantThe Covenant
  Spidersilk RobeEnergy Shield: (313-409)
  Movement Speed: -3%Requires Level 49, 134 IntSocketed Gems are Supported by Level 29 Added Chaos Damage
  +(20-30) to Intelligence
  (210-250)% increased Energy Shield
  10% increased maximum Life
  Skills gain a Base Life Cost equal to 100% of Base Mana CostMy Soul is your Strength
  My Price is your Blood
• Death's OathDeath's Oath
  Astral PlateArmour: (1990-2502)
  Movement Speed: -5%Requires Level 62, 180 Str+(8-12)% to all Elemental ResistancesTrigger Level 20 Death Aura when Equipped
  +(40-50) to all Attributes
  (10-15)% increased Attack Speed
  (180-220)% increased Armour
  +(60-70) to maximum Life
  1% of Attack Damage Leeched as Life
  You take 450 Chaos Damage per second for 3 seconds on Kill
  Gore FootprintsTears of blood, aching heart,
  My dear Isildria must depart.
• Ming's HeartMing's Heart
  Amethyst RingRequires Level 69+(17-23)% to Chaos Resistance25% reduced maximum Energy Shield
  25% reduced maximum Life
  +(40-50)% to Chaos Resistance
  Gain (40-60)% of Physical Damage as Extra Chaos DamageMing slew Tranquillity
  Took Chaos for his wife
  And on Her immortal finger
  He placed his Heart
• Mortem MorsuMortem Morsu
  Fright ClawClaw
  Physical Damage: (21-24) to (80.5-92)
  Critical Strike Chance: 7.88%
  Attacks per Second: 1.80
  Weapon Range: 1.1 metresRequires Level 34, 61 Dex, 61 IntGrants 20 Life per Enemy Hit(75-100)% increased Physical Damage
  20% increased Attack Speed
  25% increased Critical Strike Chance
  +40% to Global Critical Strike Multiplier
  (10-20)% of Physical Damage Converted to Chaos Damage
  25% reduced Enemy Stun Threshold with this Weapon
  60% chance to Poison on HitFear blisters the heart and thins the blood.
  Fear squeezes lungs and sets the guts to fester.
  Fear is the wound left untended.
• Voltaxic RiftVoltaxic Rift
  Spine BowBow
  Physical Damage: 38-115
  Elemental Damage: 1 to (600-750)
  Critical Strike Chance: 6.50%
  Attacks per Second: (1.54-1.61)Requires Level 64, 212 DexAdds 1 to (600-750) Lightning Damage
  (10-15)% increased Attack Speed
  100% of Lightning Damage Converted to Chaos Damage
  Your Chaos Damage can Shock
  Hits with this Weapon Shock Enemies as though dealing 300% more Damage
  +40% to Maximum Effect of ShockThe eldritch storm descended upon us, and bruised lightning
  rained down. Metal withered and flesh melted before its
  arcane power. There was no escape, no shelter. Only despair.
• DarkscornDarkscorn
  Assassin BowBow
  Physical Damage: (92.8-113.4) to (248-288)
  Critical Strike Chance: 6.70%
  Attacks per Second: 1.50Requires Level 62, 212 Dex+(15-25)% to Global Critical Strike Multiplier(60-80)% increased Physical Damage
  Adds (15-20) to (25-30) Physical Damage
  20% increased Attack Speed
  (15-30)% increased Global Accuracy Rating
  25% of Physical Damage Converted to Chaos Damage
  25% of Physical Damage from Hits taken as Chaos Damage
  20% chance for Poisons inflicted with this Weapon to deal 300% more Damage"The Spirit of War knows nothing of good and evil.
  It knows only destruction."
  - Sekhema Asenath
• Lightbane RaimentLightbane Raiment
  Ornate RingmailArmour: (569-715)
  Energy Shield: (118-148)
  Movement Speed: -5%Requires Level 47, 69 Str, 69 Int(120-140)% increased Armour and Energy Shield
  30% of Physical Damage Converted to Chaos Damage
  Reflects 30 Chaos Damage to Melee Attackers
  25% reduced Light Radius
  100% chance to create Desecrated Ground when you Block
  Desecrated Ground deals 250 Chaos Damage per second (Hidden)
  Desecrated Ground has a radius of 16 (Hidden). . . and the Light faded and hope waned
  Zahndethus cast aside his faith
  and embraced the darkness.

There are also uniques that give you chaos resistance.