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Contagion

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ContagionSpell, AoE, Duration, Chaos
Radius: 20
Mana Cost: (11 to 28)
Cast Time: 0.60 sec
Requires Level 4Unleashes a vile contagion on enemies, dealing chaos damage over time. If an enemy dies while affected by Contagion, it spreads to other enemies.Per 1% Quality:
0.5% increased Area of Effect
Deals (3.5-235.9) Base Chaos Damage per second
Base duration is 5 seconds
Modifiers to Spell Damage apply to this Skill's Damage Over Time effect
+(0-4) to radius
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Contagion skill icon.pngContagion inventory icon.png
Acquisition
Level: 5
Purchase Costs
Normal1x Scroll of Wisdom
Sell Price
1x Scroll Fragment

Contagion skill screenshot.jpg

Contagion is a spell that deals chaos damage to all enemies in the area, and spreads when an enemy dies. Neither the duration of Contagion nor associated degeneration effects (Essence DrainEssence DrainProjectile, Spell, Duration, Chaos
Mana Cost: (9 to 27)
Cast Time: 0.75 sec
Critical Strike Chance: 5.00%
Damage Effectiveness: 60%
Requires Level 12Fires 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.Per 1% Quality:
1% increased Chaos Damage
Deals (21.3-1159) Base Chaos Damage per second
Regenerate 0.5% of Debuff Damage as Life
Base duration is 3.8 seconds
Deals (6-334) to (9-501) Chaos Damage
Modifiers to Spell Damage apply to this Skill's Damage Over Time effect
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Essence Drain skill icon.png
) are reset when spread to allies on death.

Skill functions and interactions

  • Damage over time: Modifiers to spell, area, chaos damage, and damage over time affect the damage over time component of this spell.
  • Area of effect: modifiers to AoE radius (such as #% increased Radius of Area Skills from Increased Area of Effect SupportIncreased Area of Effect SupportSupport, AoE
    Icon: E
    Mana Multiplier: 140%
    Requires Level 38Supports any skill with an area of effect.Per 1% Quality:
    Supported Skills deal 0.5% increased Area Damage
    Supported Skills have (30-49)% increased Area of EffectThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
    ) affect both skill radius and spread radius of Contagion and Essence Drain effects.[1] Area damage (from e.g. Concentrated Effect SupportConcentrated Effect SupportSupport, AoE
    Icon: o
    Mana Multiplier: 140%
    Requires Level 18Supports any skill with an area of effect, regardless of whether that skill deals damage.Per 1% Quality:
    Supported Skills deal 0.5% increased Area Damage
    Supported Skills have 30% less Area of Effect
    Supported Skills deal (35-54)% more Area Damage
    This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
    ) does not apply.[2]
  • Contagion does not hit, and therefore cannot confer the effects of supports such as Blind SupportBlind SupportSupport
    Icon: x
    Requires Level 8Supports any skill that hits enemies.Per 1% Quality:
    Supported Skills have 1% increased Blinding duration
    Supported Skills have 10% chance to Blind enemies on hit
    Supported Skills have (0-38)% increased Blinding duration
    This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
    or Curse On Hit SupportCurse On Hit SupportCurse, Trigger, Support
    Icon: &
    Requires Level 38Must support both a skill that hits enemies, and a curse skill to work. The curse will be applied when enemies are hit by the other skill. Cannot support totems, traps, or mines. Minions cannot apply curses this way.Per 1% Quality:
    0.5% increased Effect of Supported Curses
    Supported Skills apply supported Curses on Hit
    Supported Skills have (50-12)% reduced Curse Duration
    You cannot Cast Supported Curses
    This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
    .

Gem level progression

LevelLvl.dexterityintelligenceMana
Cost
Chaos
Damage
per sec
Exp.Total Exp.
1400113.500
2600124.3841841
39017135.73,0993,940
4121421147.47,43311,373
51618261510.222,89534,268
62022311613.749,72583,993
7242537171895,714179,707
82829421823.3169,595349,302
93233471929.9283,759633,061
103636522038.1453,9961,087,057
114040582148.1703,1281,790,185
124444632260.31,061,2232,851,408
134848682375.22,065,8704,917,278
145251742493.32,507,1107,424,388
1555547825109.52,573,7319,998,119
1658578226128.17,611,35117,609,470
1761608626149.613,437,90831,047,378
1864629027174.425,052,14756,099,525
196765942720343,869,43699,968,961
2070689828235.9242,081,178342,050,139
21727010028260.5N/AN/A
2274N/AN/A29287.5N/AN/A
2376N/AN/A29317.2N/AN/A
2478N/AN/A30349.7N/AN/A
2580N/AN/A30385.4N/AN/A
2682N/AN/A30424.5N/AN/A
2784N/AN/A30467.4N/AN/A
2886N/AN/A31514.3N/AN/A
2988N/AN/A31565.7N/AN/A
3090N/AN/A32622N/AN/A

Quest reward

This skill is given as quest reward for the following quests:
ClassMarauderTemplarWitchShadowRangerDuelistScion
Quest
Breaking Some Eggs
Act 1
no
no
yes
yes
no
no
no

Vendor reward

This skill can be bought at the listed npc vendors after completing the following quests:
ClassMarauderTemplarWitchShadowRangerDuelistScion
Quest
Breaking Some Eggs
Act 1
Nessa
no
yes
yes
yes
no
no
yes
A Fixture of Fate
Act 3
Siosa
yes
Fallen from Grace
Act 6
Lilly Roth
yes

Alternate skill effects

Name Cost Description
Arcane Contagion Effect
Arcane Contagion EffectContagion Skin
Stack Size: 20
Your Contagion becomes a blue arcane effect.Right click this item then left click a Contagion Gem to apply it.
Shop Item Coin.png90 Replaces the standard effect on a ContagionContagionSpell, AoE, Duration, Chaos
Radius: 20
Mana Cost: (11 to 28)
Cast Time: 0.60 sec
Requires Level 4Unleashes a vile contagion on enemies, dealing chaos damage over time. If an enemy dies while affected by Contagion, it spreads to other enemies.Per 1% Quality:
0.5% increased Area of Effect
Deals (3.5-235.9) Base Chaos Damage per second
Base duration is 5 seconds
Modifiers to Spell Damage apply to this Skill's Damage Over Time effect
+(0-4) to radius
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Contagion skill icon.png
skill gem with a blue arcane effect.

Shop Item Video Icon.png Preview

Related helmet enchantments

The following helmet enchantments affect Contagion:

Name For generated item/monster modifiers the minimum item/monster level respectively. Some generation types may not require this condition to be met, however item level restrictions may be raised to 80% of this value. Effect(s)
EnchantmentContagionDamage16625% increased Contagion Damage
EnchantmentContagionDamage27540% increased Contagion Damage
EnchantmentContagionDuration16620% increased Contagion Duration
EnchantmentContagionDuration27530% increased Contagion Duration
EnchantmentContagionRadius1668% increased Contagion Area of Effect
EnchantmentContagionRadius27512% increased Contagion Area of Effect

Version history

Version Changes
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.

References

  1. Mark_GGG (August 1, 2016). "Mechanical Questions Thread". Official Path of Exile Forums. Retrieved August 1, 2016.
  2. Rory (May 3, 2017). "Damage Over Time Changes - Part 2". Official Path of Exile Forums. Retrieved August 7, 2017.