Blight

BlightSpell, Chaos, AoE, Channelling, Duration
Radius: 26
Mana Cost: (2-5)
Cast Time: 0.30 secApply a debuff to enemies in front of you which deals chaos damage over time. Enemies who aren't already debuffed by Blight are also hindered for a shorter secondary duration, slowing their movement. Continued channelling adds layers of damage to the debuff, each with their own duration.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Area of Effect1% increased Chaos Damage3% increased Secondary DurationDeals (3.1-257.4) Base Chaos Damage per second
Base duration is 2.5 seconds
Base secondary duration is 0.8 seconds
80% reduced Movement Speed
Debuff can have up to 20 layers of Damage
Modifiers to Spell Damage apply to this Skill's Damage Over Time effect
+(0-6) to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.Acquisition
Level: 5Purchase Costs

Normal

1x Scroll of Wisdom

Sell Price
1x Scroll FragmentMiscellaneous
Item class: Active Skill Gems
Metadata ID: Metadata/Items/Gems/SkillGemBlight

This page is about the skill gem. For the game mechanic, see Blight (game mechanic).

For the challenge league, see Blight league.

For the Vaal-themed counterpart, see Vaal Blight.

Blight is a channelling spell that deals chaos damage over time to all enemies in the area in front of the caster.

Skill functions and interactions

• Damage over time: Modifiers to spell, chaos damage, and damage over time affect the damage over time component of this spell.
• Area of effect: Increasing or decreasing the area works as expected, but 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:123Supported Skills deal 0.5% increased Area DamageSupported Skills have 0.5% less Area of EffectSupported Skills have 0.5% reduced Enemy Stun ThresholdSupported Skills have 30% less Area of Effect
  Supported Skills deal (35-54)% more 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 Active Skill Gem you wish to augment. Right click to remove from a socket.) does not apply.
• Blight does not hit and therefore cannot be supported by added damage supports such as Added Chaos Damage SupportAdded Chaos Damage SupportChaos, Support
  Icon: H
  Mana Multiplier: 130%Requires Level 31Supports any skill that hits enemies.Per 1% Quality:123Supported Skills deal 0.5% increased Chaos DamageSupported Skills Penetrate 0.25% Chaos ResistanceSupported Skills have 1% of Physical Damage Converted to Chaos DamageSupported Skills have (17-170) to (26-255) added Chaos 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 Active Skill Gem you wish to augment. Right click to remove from a socket. and cannot confer the effects of supports such as Blind SupportBlind SupportSupport
  Icon: xRequires Level 8Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Blinding durationSupported Skills have 0.5% chance to Blind enemies on hitSupported Skills have 2% increased Critical Strike Chance against Blinded EnemiesSupported Skills have 10% chance to Blind enemies on hit
  Supported Skills have (0-38)% increased Blinding 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 Active Skill Gem you wish to augment. Right click to remove from a socket. or Hextouch SupportHextouch SupportTrigger, Support, Hex
  Icon: &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.Per 1% Quality:1230.5% increased Effect of Supported CursesSupported Skills deal 1% increased Damage with Hits and Ailments per Curse on Enemy0.5% reduced Effect of Supported Curses
  Supported Skills have 2% increased Curse DurationSupported Skills apply supported Curses on Hit
  Supported Skills have (50-12)% reduced Curse Duration
  You cannot Cast Supported Curse SpellsThis 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.. Additionally, on hit effects such as Leech, poison, or life gain on hit will not occur while using Blight. Despite not hitting, Blight will break pots, baskets, cairns, etc. within its area of effect.
• See Channelling for more information.
• Blight and Vaal blight both count towards the maximum limit of 20 debuffs per monsters.

Gem level progression

Level			Mana Cost	Chaos Damage per sec	Radius	Exp.	Total Exp.
1	1	0	2	3.1	N/A	0	0
2	2	0	2	3.5	N/A	70	70
3	4	16	2	4.5	+1	308	378
4	7	22	2	6	+1	1,554	1,932
5	11	31	2	8.6	+1	6,667	8,599
6	16	41	2	12.7	+2	26,047	34,646
7	20	50	2	16.8	+2	49,725	84,371
8	24	58	2	21.9	+2	95,714	180,085
9	28	67	3	28.2	+3	169,595	349,680
10	32	75	3	35.8	+3	283,759	633,439
11	36	83	3	45.1	+3	453,996	1,087,435
12	40	92	3	56.4	+4	703,128	1,790,563
13	44	100	4	70	+4	1,061,223	2,851,786
14	48	109	4	86.5	+4	2,065,870	4,917,656
15	52	117	4	106.4	+5	2,507,110	7,424,766
16	56	125	4	130.2	+5	5,798,936	13,223,702
17	60	134	4	158.8	+5	15,083,919	28,307,621
18	64	142	5	193.1	+6	27,792,735	56,100,356
19	67	148	5	223.1	+6	43,869,739	99,970,095
20	70	155	5	257.4	+6	242,081,556	342,051,651
21	72	159	5	282.9	+7	N/A	N/A
22	74	N/A	5	310.8	+7	N/A	N/A
23	76	N/A	5	341.2	+7	N/A	N/A
24	78	N/A	5	374.4	+8	N/A	N/A
25	80	N/A	5	410.6	+8	N/A	N/A
26	82	N/A	6	450	+8	N/A	N/A
27	84	N/A	6	493.1	+9	N/A	N/A
28	86	N/A	6	540	+9	N/A	N/A
29	88	N/A	6	591.1	+9	N/A	N/A
30	90	N/A	6	646.8	+10	N/A	N/A
31	91	N/A	6	676.4	+10	N/A	N/A
32	92	N/A	6	707.4	+10	N/A	N/A
33	93	N/A	6	739.7	+10	N/A	N/A
34	94	N/A	6	773.4	+10	N/A	N/A
35	95	N/A	6	808.6	+10	N/A	N/A
36	96	N/A	6	845.3	+11	N/A	N/A
37	97	N/A	6	883.5	+11	N/A	N/A
38	98	N/A	6	923.5	+11	N/A	N/A
39	99	N/A	7	965.1	+11	N/A	N/A
40	100	N/A	7	1008.6	+11	N/A	N/A

Item acquisition

Upgrade paths

This item can be acquired through the following upgrade paths or vendor recipes:

Amount	Ingredient	General Notes	Type
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	Automatic
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 corrupted level 21 Spell gem	Automatic
3	Gemcutter's PromiseGemcutter's Promise3Superior Gem 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 superior gem (Q20)	Automatic

Quest reward

This item is given as a quest reward for the following quests:

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
Quest ↓
Enemy at the Gate Act 1	✓	✓	✗	✗	✗	✗	✗

Vendor reward

This item can be bought at the listed NPC vendors, after completing the following quests:

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
Quest ↓
Enemy at the Gate Act 1 Nessa	✓	✓	✗	✗	✗	✓	✓
A Fixture of Fate Act 3 Siosa	✓
Fallen from Grace Act 6 Lilly Roth	✓

Threshold jewels

The following threshold jewels augment Blight:

Item	Limit	Radius	Stats
Spreading RotSpreading Rot Cobalt JewelLimited to: 2 Radius: Medium (1200)(7-13)% increased Chaos Damage With at least 40 Intelligence in Radius, Blight inflicts Withered for 2 seconds With at least 40 Intelligence in Radius, Blight has 50% increased Hinder DurationThe Cataclysm was but the first act in a play of horrors. The dead lingered, and the living began to rot.Place into an allocated Jewel Socket on the Passive Skill Tree. Right click to remove from the Socket.	2	Medium (1200)	(7-13)% increased Chaos Damage With at least 40 Intelligence in Radius, Blight inflicts Withered for 2 seconds With at least 40 Intelligence in Radius, Blight has 50% increased Hinder Duration

Related helmet enchantments

The following helmet enchantments affect Blight.

Name		Stats	Spawn Weighting
Enchantment Blight Damage 1	66	25% increased Blight Damage	helmet 100 default 0
Enchantment Blight Damage 2	75	40% increased Blight Damage	helmet 100 default 0
Enchantment Blight Area Of Effect 1	66	16% increased Blight Area of Effect	helmet 100 default 0
Enchantment Blight Area Of Effect 2	75	24% increased Blight Area of Effect	helmet 100 default 0
Enchantment Blight Secondary Skill Duration 1	66	Blight has 20% increased Hinder Duration	helmet 100 default 0
Enchantment Blight Secondary Skill Duration 2	75	Blight has 30% increased Hinder Duration	helmet 100 default 0

Related unique items

The following unique items are related to Blight:

Item	Base Item		Stats
Spreading RotSpreading Rot Cobalt JewelLimited to: 2 Radius: Medium (1200)(7-13)% increased Chaos Damage With at least 40 Intelligence in Radius, Blight inflicts Withered for 2 seconds With at least 40 Intelligence in Radius, Blight has 50% increased Hinder DurationThe Cataclysm was but the first act in a play of horrors. The dead lingered, and the living began to rot.Place into an allocated Jewel Socket on the Passive Skill Tree. Right click to remove from the Socket.	Cobalt Jewel	1	(7-13)% increased Chaos Damage With at least 40 Intelligence in Radius, Blight inflicts Withered for 2 seconds With at least 40 Intelligence in Radius, Blight has 50% increased Hinder Duration
AllelopathyAllelopathy Sorcerer GlovesQuality: +20% Energy Shield: (103-112)Requires Level 69, 97 IntGrants Level 22 Blight Skill (20-30)% increased Damage over Time (100-120)% increased Energy Shield 10% increased Area of Effect Blight has (20-30)% increased Hinder Duration You cannot be Hindered"Nothing is more natural than competition. One feasts, another starves. One blossoms, another withers. And one cannot catch the golden sunlight without casting a bitter shadow." - Cadiro Perandus	Sorcerer Gloves	69	Grants Level 22 Blight Skill (20-30)% increased Damage over Time (100-120)% increased Energy Shield 10% increased Area of Effect Blight has (20-30)% increased Hinder Duration You cannot be Hindered

Alternate skill effects

Blight has the following alternate skill effects:

Item	Effect(s)
Celestial Blight EffectCelestial Blight EffectSkill Gem EffectYour Blight becomes a Celestial Effect.	Your Blight becomes a Celestial Effect.

Version history

Version	Changes
3.6.0	Mana Cost at gem level 20 is now 5 (was 4). Now deals 3.1 base Chaos damage per second at gem level 1 (from 1.7) and 257.4 base Chaos damage per second at gem level 20 (from 209.9). Now gains additional radius as the gem levels up, up to +6 at gem level 20 (from +4 at gem level 20).
3.0.0	Blight deals 25% more damage at gem level 20.
2.6.0	Blight gains 1 additional unit of radius every 5 levels.
2.5.0	Blight's damage has been increased by 5% damage at level 1 of the gem, up to 35% more damage at level 20 of the gem.
2.4.2	Added new Intelligence skill - Blight: Apply a debuff to enemies in front of you which deals chaos damage over time. Enemies who aren't already debuffed by Blight are also hindered for a shorter secondary duration, slowing their movement. Continued channelling adds layers of damage to the debuff, each with their own duration.