ContagionSpell, AoE, Duration, Chaos Level: (1-20) Cost: (5-20) Mana Cast Time: 0.60 sec AoE Radius: 20Requires 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.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
Additional Effects From 1-20% Quality: 0.5% increased Area of Effect3% increased Chaos Damage3% chance to Spread when affected Enemy is HitPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
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 DrainEssence DrainSpell, Projectile, Duration, Chaos, AoE Level: (1-20) Cost: (8-23) Mana Cast Time: 0.70 sec Critical Strike Chance: 5.00% Effectiveness of Added Damage: 140%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.Deals (9-644) to (13-966) Chaos Damage Deals (31.2-1509.4) Base Chaos Damage per second Base duration is 3.80 seconds Modifiers to Spell Damage apply to this Skill's Damage Over Time effect Regenerate 0.50% of Debuff Damage as Life
Additional Effects From 1-20% Quality: Regenerate +(0.025-0.5)% of Debuff Damage as LifePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., a skill that deals heavy chaos damage over time and is spread by Contagion.
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 DrainEssence DrainSpell, Projectile, Duration, Chaos, AoE Level: (1-20) Cost: (8-23) Mana Cast Time: 0.70 sec Critical Strike Chance: 5.00% Effectiveness of Added Damage: 140%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.Deals (9-644) to (13-966) Chaos Damage Deals (31.2-1509.4) Base Chaos Damage per second Base duration is 3.80 seconds Modifiers to Spell Damage apply to this Skill's Damage Over Time effect Regenerate 0.50% of Debuff Damage as Life
Additional Effects From 1-20% Quality: Regenerate +(0.025-0.5)% of Debuff Damage as LifePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.: 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 DrainEssence DrainSpell, Projectile, Duration, Chaos, AoE Level: (1-20) Cost: (8-23) Mana Cast Time: 0.70 sec Critical Strike Chance: 5.00% Effectiveness of Added Damage: 140%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.Deals (9-644) to (13-966) Chaos Damage Deals (31.2-1509.4) Base Chaos Damage per second Base duration is 3.80 seconds Modifiers to Spell Damage apply to this Skill's Damage Over Time effect Regenerate 0.50% of Debuff Damage as Life
Additional Effects From 1-20% Quality: Regenerate +(0.025-0.5)% of Debuff Damage as LifePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.) 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.[1] Modifiers to area damage (such as Concentrated Effect SupportConcentrated Effect SupportSupport, AoE Icon: o Level: (1-20) Cost & Reservation Multiplier: 140%Requires Level 18Supports any skill with an area of effect, regardless of whether that skill deals damage.Supported Skills deal (25-39)% more Area Damage Supported Skills have 30% less Area of Effect
Additional Effects From 1-20% Quality: Supported Skills deal (0.5-10)% increased Area DamageThis 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 Skill Gem you wish to augment. Right click to remove from a socket.) do not apply.[2]
On hit effects: Contagion does not hit, and therefore cannot activate the effects of supports such as Hextouch SupportHextouch SupportSupport, Hex, Trigger Icon: & Level: (1-20) Cost & Reservation Multiplier: 130%Requires Level 38Must support both a skill that hits enemies, and a hex curse skill to work. The hex will be applied when enemies are hit by the other skill. Cannot support totems, traps, or mines. Minions cannot apply hexes this way.Supported Skills apply supported Curses on Hit You cannot Cast Supported Curse Spells 35% less Effect of Supported Curses Supported Skills have (50-31)% reduced Curse Duration
Additional Effects From 1-20% Quality: Supported Skills have (0.5-10)% increased Curse DurationThis 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 Skill Gem you wish to augment. Right click to remove from a socket..
Gem level progression
Level
Mana Cost
Chaos Damage per sec
Exp.
Total Exp.
1
4
0
0
5
3.5
0
0
2
6
0
0
6
4.3
841
841
3
9
0
17
6
5.7
3099
3940
4
12
14
21
7
7.4
7433
11373
5
16
18
26
8
10.2
22895
34268
6
20
22
31
9
13.6
49725
83993
7
24
25
37
10
18
95714
179707
8
28
29
42
11
23.3
169595
349302
9
32
33
47
11
29.9
283759
633061
10
36
36
52
12
38.1
453996
1087057
11
40
40
58
13
48.1
703128
1790185
12
44
44
63
14
60.3
1061223
2851408
13
48
48
68
15
75.2
2065870
4917278
14
52
51
74
16
93.3
2507110
7424388
15
55
54
78
16
109.5
2573731
9998119
16
58
57
82
17
128.1
7611351
17609470
17
61
60
86
18
149.6
13437908
31047378
18
64
62
90
18
174.4
25052147
56099525
19
67
65
94
19
203
43869436
99968961
20
70
68
98
20
235.9
242081178
342050139
21
72
70
100
20
260.5
N/A
N/A
22
74
N/A
N/A
21
287.5
N/A
N/A
23
76
N/A
N/A
21
317.2
N/A
N/A
24
78
N/A
N/A
21
349.7
N/A
N/A
25
80
N/A
N/A
22
385.4
N/A
N/A
26
82
N/A
N/A
22
424.5
N/A
N/A
27
84
N/A
N/A
23
467.3
N/A
N/A
28
86
N/A
N/A
23
514.3
N/A
N/A
29
88
N/A
N/A
24
565.7
N/A
N/A
30
90
N/A
N/A
24
621.9
N/A
N/A
31
91
N/A
N/A
24
652
N/A
N/A
32
92
N/A
N/A
25
683.5
N/A
N/A
33
93
N/A
N/A
25
716.5
N/A
N/A
34
94
N/A
N/A
25
750.9
N/A
N/A
35
95
N/A
N/A
25
787
N/A
N/A
36
96
N/A
N/A
25
824.7
N/A
N/A
37
97
N/A
N/A
26
864.1
N/A
N/A
38
98
N/A
N/A
26
905.4
N/A
N/A
39
99
N/A
N/A
26
948.5
N/A
N/A
40
100
N/A
N/A
26
993.6
N/A
N/A
Item acquisition
Contagion can drop anywhere.
Recipes
Contagion can be created from the following recipes:
Amount
Part
Description
Meta
3
The Bitter BlossomThe Bitter Blossom3Level 21 Chaos Gem Quality:+23% CorruptedThe pain you feel is of no consequence, it is evolution, to be made whole within something greater.
Random corruptedlevel 21 Chaos gem with 23% quality
A
13
The CataclysmThe Cataclysm13Level 21 Spell Gem CorruptedThe mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.
Random corruptedlevel 21 Spell gem
A
6
The FoxThe Fox6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox." - Ezomyte Proverb
Random level 20 gem
A
3
Gemcutter's PromiseGemcutter's Promise3Gem Quality:+20%"I swore to use my position to help the people. What good is power when it just accumulates on the already-powerful?" - Erasmus, Imperial Gemcutter
Random gem with 20% quality
A
1
Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
Random gem with 1–20% quality
A
1
The VoidThe Void1Reach into the Void and claim your prize.
Random divination card set exchange
A
Quest reward
This item is given as a quest reward for the following quests:
Note that helmet enchantments are no longer obtainable since version 3.23.0 and can only be obtained in permanent leagues as already enchanted items from before this patch.
Essence DrainEssence DrainSpell, Projectile, Duration, Chaos, AoE
, a skill that deals heavy chaos damage over time and is spread by Contagion.
Concentrated Effect SupportConcentrated Effect SupportSupport, AoE
) do not apply.[2]
Hextouch SupportHextouch SupportSupport, Hex, Trigger
.
The Bitter Blossom
The Bitter Blossom
3Level 21 Chaos Gem
The Cataclysm
13Level 21 Spell Gem
The Fox
6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox."
Gemcutter's Promise
3Gem
Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item
The Void
1Reach into the Void and claim your prize.
Arcane Contagion EffectSkill Gem EffectYour Contagion becomes a blue arcane effect.
Celestial Contagion EffectSkill Gem EffectYour Contagion becomes a Celestial Effect.
Project Contagion EffectSkill Gem EffectYour Contagion becomes a Project Effect.
Scientist Contagion EffectSkill Gem EffectYour Contagion becomes a Scientist Effect.
Sunprism Contagion EffectSkill Gem EffectYour Contagion becomes a Sunprism Effect.