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Contagion
Spell, AoE, Duration, Chaos
Level: (1—20)
Cost: (5—20) Mana
Cast Time: 0.60 sec
Requires Level (4—70), (0—68) Dex, (0—98) Int
Unleashes a vile contagion on enemies, dealing chaos damage over time. If an enemy dies while affected by Contagion, the debuff spreads to other enemies.
Deals (3.4—281.5) Base Chaos Damage per second
Base duration is 5 seconds
Modifiers to Spell Damage apply to this Skill's Damage Over Time effect
Base radius is 1.7 metres
Spreads when affected Enemy dies

Additional Effects From Quality:
Base radius is (0—0.2) metres
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Quest /2
ActQuestNPCCharacter
1Breaking Some EggsQuest RewardWitch · Shadow
1Breaking Some EggsNessaScion · Shadow · Templar · Witch
Genus
ContagionGem
·
ContagionGem
·
ContagionGem
Level Effect /40
Implicit
Base duration is 5 seconds
Base radius is 1.7 metres
Modifiers to Spell Damage apply to this Skill's Damage Over Time effect
Spreads when affected Enemy dies
LevelRequires LevelIntDexManaBase DamageDeals 3.4 Base Chaos Damage per secondExperience
14005100%, 100%, 100%3.4841
26006100%, 100%, 100%4.23,099
391706100%, 100%, 100%5.67,433
41221147100%, 100%, 100%7.422,895
51626188100%, 100%, 100%10.249,725
62031229100%, 100%, 100%13.995,714
724372510100%, 100%, 100%18.5169,595
828422911100%, 100%, 100%24.4283,759
932473311100%, 100%, 100%31.7453,996
1036533712100%, 100%, 100%40.8703,128
1140584013100%, 100%, 100%52.21,061,223
1244634414100%, 100%, 100%66.32,065,870
1348694815100%, 100%, 100%83.72,507,110
1452745116100%, 100%, 100%105.22,573,731
1555785416100%, 100%, 100%124.67,611,351
1658825717100%, 100%, 100%147.113,437,908
1761866018100%, 100%, 100%173.525,052,147
1864906218100%, 100%, 100%204.243,869,436
1967946519100%, 100%, 100%239.9242,081,178
2070986820100%, 100%, 100%281.5
217220100%, 100%, 100%312.8
227421100%, 100%, 100%347.5
237621100%, 100%, 100%385.8
247821100%, 100%, 100%428.1
258022100%, 100%, 100%474.7
268222100%, 100%, 100%526.2
278423100%, 100%, 100%583
288623100%, 100%, 100%645.7
298824100%, 100%, 100%714.7
309024100%, 100%, 100%790.8
319124100%, 100%, 100%831.7
329225100%, 100%, 100%874.7
339325100%, 100%, 100%919.7
349425100%, 100%, 100%967
359525100%, 100%, 100%1016.7
369625100%, 100%, 100%1068.8
379726100%, 100%, 100%1123.4
389826100%, 100%, 100%1180.8
399926100%, 100%, 100%1241
4010026100%, 100%, 100%1304.1
Attribute /12

Contagion

NameShow Full Descriptions
CostiLvl 1: Normal: 1xCurrencyIdentificationScroll of Wisdom
AcronymModifiers
IdContagion
DropLevel 4
BaseType Contagion
Class Skill Gems
TargetTypesGround, Enemy,
TypeSpell, Area, Duration, Trappable, Totemable, DamageOverTime, Chaos, Multicastable, Triggerable, Mineable, DegenOnlySpellDamage, Cascadable, CanRapidFire, AreaSpell
BuffIconContagion
ItemTypeMetadata/Items/Gems/SkillGemContagion
ActiveSkillsCodecontagion
Referencepoe.ninja, Community Wiki
Crucible Weapon /1
WeightDesc
1000 (T5)Enemies inflicted with Bane or Contagion are Chilled
Version history /12
VersionChanges
3.26.0
  • Blight of Contagion: Now deals 9.7-837.6 Base Chaos Damage per second at gem levels 1-20 (previously 9.7-704.3). Debuff can now have up to 6 layers of Damage (previously 5).
  • Contagion: Now deals 3.4-281.5 Base Chaos Damage per second at gem levels 1-20 (previously 3.5-235.9).
  • Contagion of Subsiding: Now deals 10.1-1531.3 Base Chaos Damage per second at gem levels 1-20 (previously 10.3-1279.2).
  • Contagion of Transference: Now deals 5.4-821.7 Base Chaos Damage per second at gem levels 1-20 (previously 5.6-686.9).
    • 3.25.0
  • Blight of Contagion: Now deals 9.7 Base Chaos Damage per second at gem level 1 (previously 8.5), scaling up to 704.3 at gem level 20 (previously 612.2).
    • 3.24.0
  • Added a new Suffix modifier that can roll on Minion Wands and Shields that grants level 1 Contagion Skill.
    • 3.23.0
    Contagion:
    3.13.0

    Contagion
    3.8.0
  • Several Damage over Time-only skills, such as Righteous Fire, Contagion and the Death Aura from Death's Oath, can now break barrels and other objects throughout the world.
    • Contagion
    3.7.0
  • Fixed a bug where Essence Drain, Soulrend, Bane and Contagion were all bypassing PvP scaling when triggered from a trap or mine.
    • 3.6.0
    Contagion
    3.0.0
  • Contagion deals 10% more damage at level 1, up to 25% more damage at gem level 20, and now has a 0.6 second cast time, down from 0.85 seconds. Contagion now gains +1 base area of effect radius every 5 levels.
    • 2.6.0
  • Contagion's radius has increased from 18 to 20 units.
    • 2.4.0
  • PvP T-values have been set for Contagion, Essence Drain and Vortex.
    • 2.1.0
  • Added a new Intelligence/Dexterity Skill Gem - Contagion: Unleashes a vile contagion on enemies, dealing chaos damage over time. If an enemy dies while affected by Contagion, it spreads to other enemies.
  • Added a new Intelligence/Dexterity Skill Gem - Essence Drain: Fires a projectile that applies a damage over time debuff when it hits. You are healed for a portion of the debuff damage. The debuff is spread by Contagion.
    • Contagion
    Spell, AoE, Duration, Chaos
    Level: (1—20)
    Cost: (5—20) Mana
    Cast Time: 0.60 sec
    Requires Level (4—70), (0—68) Dex, (0—98) Int
    Unleashes a vile contagion on enemies, dealing chaos damage over time. If an enemy dies while affected by Contagion, the debuff spreads to other enemies.
    Deals (3.4—281.5) Base Chaos Damage per second
    Base duration is 5 seconds
    Modifiers to Spell Damage apply to this Skill's Damage Over Time effect
    Base radius is 1.7 metres
    Spreads when affected Enemy dies
    is area damage [1]

    Additional Effects From Quality:
    Base radius is (0—0.2) metres
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    Supported By /51
  • Active Type: Spell, Area, Duration, Trappable, Totemable, DamageOverTime, Chaos, Multicastable, Triggerable, Mineable, DegenOnlySpellDamage, Cascadable, CanRapidFire, AreaSpell
    • IncreasedDuration
    More Duration Support
    Supports any skill with a duration.
    IronWill
    Iron Will Support
    Supports spell skills, making the increase to physical melee damage from strength also increase their spell damage.
    Totem
    Spell Totem Support
    Supports spell skills that are not triggered. Instead of casting that spell, you will summon a totem that casts the spell for you.
    CastOnMeleeKill
    Cast on Melee Kill Support
    Must support both a melee attack skill and a spell skill to work. The attack skill will trigger a spell when it kills an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
    Empower
    Empower Support
    Supports any skill gem. Once this gem reaches level 2 or above, will raise the level of supported gems. Cannot support skills that don't come from gems.
    ReduceDuration
    Less Duration Support
    Supports any skill that has a duration.
    CastOnDmgTaken
    Cast when Damage Taken Support
    Each supported spell skill will track damage you take, and be triggered when the total damage taken reaches a threshold. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
    Brutality
    Brutality Support
    Supports any skill that deals damage.
    BrutalityPlus
    Awakened Brutality Support
    Supports any skill that deals damage.
    EmpowerPlus
    Awakened Empower Support
    Supports any skill gem. Once this gem reaches level 2 or above, will raise the level of supported gems. Cannot support skills that don't come from gems.
    LifeTap
    Lifetap Support
    Supports any non-blessing skill. Minions cannot gain the Lifetap buff.
    TransfusionSupport
    Transfusion Support
    Supports non-blessing spells.
    Trap
    Trap Support
    Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a trap that will use the skill for you when an enemy walks near it. Traps cannot use channelling skills.
    CastOnCrit
    Cast On Critical Strike Support
    Must support both an attack skill and a spell skill to work. The attack skill will trigger a spell when it critically strikes an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
    CastOnDeath
    Cast on Death Support
    Each supported spell skill will be triggered when you die. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
    enhance
    Enhance Support
    Supports any skill gem. Once this gem reaches level 2 or above, will raise the quality of supported gems. Cannot support skills that don't come from gems.
    DamageAgainstChilled
    Hypothermia Support
    Supports any skill that deals damage.
    VoidManipulation
    Void Manipulation Support
    Supports any skill that deals damage.
    SupportRapidDecayGem
    Swift Affliction Support
    Supports any skill that has a duration, or can hit enemies to inflict ailments on them.
    CastOnCritPlus
    Awakened Cast On Critical Strike Support
    Must support both an attack skill and a spell skill to work. The attack skill will trigger a spell when it critically strikes an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
    SupportRapidDecayPlus
    Awakened Swift Affliction Support
    Supports any skill that has a duration, or can hit enemies to inflict ailments on them.
    VoidManipulationPlus
    Awakened Void Manipulation Support
    Supports any skill that deals damage.
    enhanceplus
    Awakened Enhance Support
    Supports any skill gem. Once this gem reaches level 2 or above, will raise the quality of supported gems. Cannot support skills that don't come from gems.
    CastonWardBreak
    Cast on Ward Break Support
    Each supported spell skill will be triggered when your Ward breaks. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
    IncreasedAOE
    Increased Area of Effect Support
    Supports any skill with an area of effect.
    IncreasedQuality
    Item Rarity Support
    Supports any skill that can kill enemies.
    FasterCast
    Faster Casting Support
    Supports non-instant spell skills.
    ConcentratedAOE
    Concentrated Effect Support
    Supports any skill with an area of effect, regardless of whether that skill deals damage.
    RemoteMine
    Blastchain Mine Support
    Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a mine that will use the skill for you when you detonate it. Mines cannot use channelling skills.
    Echo
    Spell Echo Support
    Supports spell skills, making them repeat when cast. Cannot support Vaal skills, totem skills, channelling skills, triggered skills, instant skills, retaliation skills, blink skills, or skills with a reservation.
    CastOnStun
    Cast when Stunned Support
    Each supported spell skill will have a chance to be triggered when you are stunned. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
    Enlighten
    Enlighten Support
    Supports any skill gem. Once this gem reaches level 2 or above, will apply a cost & reservation multiplier to supported gems. Cannot support skills that don't come from gems.
    ControlledDestructionGem
    Controlled Destruction Support
    Supports attack skills, or spell skills that deal damage.
    CastWhileChanneling
    Cast while Channelling Support
    Must support both a channelling skill and a non-channelling spell skill to work. The channelling skill will trigger a spell periodically while channelling. Cannot support skills used by totems, traps, or mines. Vaal skills and skills with a reservation cannot be triggered.
    Efficacy
    Efficacy Support
    Supports any skill that deals damage or has a duration.
    ArcaneSurge
    Arcane Surge Support
    Each supported spell will track how much mana you spend on it, granting a buff when the total mana spent reaches a threshold. Cannot support skills used by totems, traps, mines or skills with a reservation.
    SpellCascade
    Spell Cascade Support
    Supports spell skills that apply an effect to an area around a targeted location. Cannot support Vaal skills or skills used by totems, traps, or mines. Cannot modify the skills of minions.
    SpellFocusSupport
    Intensify Support
    Supports spell skills that you cast yourself. Cannot support triggered skills, Vaal skills, instant skills, channelling skills, skills with a reservation or which create minions, or skills used by totems, traps, or mines.
    UnleashSupport
    Unleash Support
    Supports spell skills, making their effect reoccur when cast. Cannot support skills with cooldowns, triggered skills, Brand skills, Vaal skills, channelling skills, skills with a reservation, or skills used by totems, traps, or mines. Cannot modify the skills of minions.
    AltRemoteMineSupportGem
    High-Impact Mine Support
    Supports spells, or attacks that use bows or wands. Instead of using that skill, you will throw a mine that will use the skill for you when you detonate it. Mines cannot use channelling skills.
    CastWhileChannelingPlus
    Awakened Cast While Channelling Support
    Must support both a channelling skill and a non-channelling spell skill to work. The channelling skill will trigger a spell periodically while channelling. Cannot support skills used by totems, traps, or mines. Vaal skills and skills with a reservation cannot be triggered.
    ControlledDestructionPlus
    Awakened Controlled Destruction Support
    Supports attack skills, or spell skills that deal damage.
    IncreasedAOEPlus
    Awakened Increased Area of Effect Support
    Supports any skill with an area of effect.
    SpellCascadePlus
    Awakened Spell Cascade Support
    Supports spell skills that apply an effect to an area around a targeted location. Cannot support Vaal skills or skills used by totems, traps, or mines. Cannot modify the skills of minions.
    EchoPlus
    Awakened Spell Echo Support
    Supports spell skills, making them repeat when cast. Cannot support Vaal skills, totem skills, channelling skills, triggered skills, instant skills, retaliation skills, blink skills, or skills with a reservation.
    UnleashPlus
    Awakened Unleash Support
    Supports spell skills, making their effect reoccur when cast. Cannot support skills with cooldowns, triggered skills, Brand skills, Vaal skills, channelling skills, skills with a reservation, or skills used by totems, traps, or mines. Cannot modify the skills of minions.
    Enlightenplus
    Awakened Enlighten Support
    Supports any skill gem. Once this gem reaches level 2 or above, will apply a cost & reservation multiplier to supported gems. Cannot support skills that don't come from gems.
    SpellCascade
    Greater Spell Cascade Support
    Supports spell skills that apply an effect to an area around a targeted location. Cannot support Vaal skills or skills used by totems, traps, or mines. Cannot modify the skills of minions.
    Echo
    Greater Spell Echo Support
    Supports spell skills, making them repeat when cast. Cannot support Vaal skills, totem skills, brand skills, channelling skills, triggered skills, instant skills, retaliation skills, blink skills, or skills with a reservation.
    UnleashSupport
    Greater Unleash Support
    Supports spell skills, making their effect reoccur when cast. Cannot support skills with cooldowns, triggered skills, Brand skills, Vaal skills, channelling skills, skills with a reservation, or skills used by totems, traps, or mines. Cannot modify the skills of minions.
    Eclipse
    Eclipse Support
    Supports any skill gem. Cannot support skills that don't come from gems.
    Microtransactions /5
    ArcaneContagion
    Arcane Contagion Effect
    Your Contagion becomes a blue arcane effect.
    CelestialContagion
    Celestial Contagion Effect
    Your Contagion becomes a Celestial Effect.
    ProjectContagionEffect
    Project Contagion Effect
    Your Contagion becomes a Project Effect.
    ScientistContagionEffect
    Scientist Contagion Effect
    Your Contagion becomes a Scientist Effect.
    SunprismContagionEffect
    Sunprism Contagion Effect
    Your Contagion becomes a Sunprism Effect.
    Contagion
    You are taking Chaos Damage Over Time
    base_chaos_damage_taken_per_minute
    Attribute /5

    contagion

    NameShow Full Descriptions
    CostiLvl 1: Normal: 1xCurrencyIdentificationScroll of Wisdom · Magic: 1xCurrencyUpgradeToMagicOrb of Transmutation · Rare: 1xCurrencyUpgradeToRareOrb of Alchemy · Unique: 5xCurrencyRerollRareChaos Orb
    BuffIconContagion
    BuffGroupsID36
    IsBuffDefinition1
    BuffMergeModesID8
    Crucible Weapon /1
    WeightDesc
    1000 (T5)Enemies inflicted with Bane or Contagion are Chilled
    Codebase chaos damage taken per minute
    IsPublic1
    IsLocal0
    IsWeaponLocal0
    IsProxied
    IsParty0
    IsVirtual0
    IsScalable1
    StatSemantics3
    Contagion Monster /2
    NameModifiersSpectre
    Ulysses Morvant+3 to maximum number of Summoned Totems
    kill traps mines and totems on death [1]
    30% Chance to Block Attack Damage
    You take 15% of Damage from Blocked Hits    		Y
    Ulysses Morvant+3 to maximum number of Summoned Totems
    kill traps mines and totems on death [1]
    30% Chance to Block Attack Damage
    You take 15% of Damage from Blocked Hits
    100% increased maximum Life
    100% increased Area of Effect
    80% increased Character Size    		Y

    Community Wiki

    Edit

    Contagion

    Contagion is a chaos spell that applies a chaos damage over time effect to all enemies in the area, and spreads itself when an enemy dies. Contagion interacts favourably with Essence Drain, a skill that deals heavy chaos damage over time and is spread by Contagion.

    Skill functions and interactions

    • Modifiers to Spell Damage apply to this skill's Damage Over Time Effect: Modifiers to spell damage only affect the damage over time effect of Contagion granted by the gem and do not affect other sources of damage over time caused by the skill.

    • Essence Drain: When an enemy affected by both Contagion and Essence Drain dies, the resulting Contagion proc will spread both effects. This is a unique interaction. Contagion will not spread other damage over time effects.

    • Duration: Increases and reductions to duration function normally. The duration of Contagion and associated degeneration effects (Essence Drain) is not reset when spread to other enemies on death.

    • Area of Effect: Modifiers to area of effect affect both the skill radius and spread radius of Contagion. Modifiers to area damage (such as Concentrated Effect Support) do not apply.

    • On hit effects: Contagion does not hit, and therefore cannot activate the effects of supports such as Hextouch Support.

    Version history

    VersionChanges
    3.13.0
  • Now has a base radius of 17 (from 20).
    • 3.12.0
  • Now has alternative quality.
    • 3.8.0
  • No longer gains additional radius as the gem levels (previously gained +4 radius by gem level 20).
    • 3.6.0
  • Mana Cost at gem level 1 is now 5 (was 11).
  • Mana Cost at gem level 20 is now 20 (was 28).
  • Can now affect up to 40 targets per cast (from 20).
    • 2.6.0
  • Contagion's radius has increased from 18 to 20 units.
    • 2.2.1d
  • Fixed an instance crash with Contagion.
    • 2.1.1c
  • Fixed an instance crash with [...] Contagion.
    • 2.1.1b
  • Fixed a bug where Contagion could be cast and spread through walls.
    • 2.1.1
  • Contagion can now be supported by Iron Will.
    • 2.1.0
  • Added to the game.
    • Wikis Content is available under CC BY-NC-SA 3.0 unless otherwise noted.