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Decay SupportChaos, Support
Icon: D
Level: (1-20)
Cost & Reservation Multiplier: 130%
Requires Level 38Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Chaos DamageSupported Skills have 0.5% increased Skill Effect DurationSupported Skills have 0.5% of Physical Damage Converted to Chaos DamageSupported Skills inflict Decay on Hit, dealing (120-843) Chaos Damage per second for 8 secondsThis 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.
Decay Support inventory icon.png
Acquisition
Area level: 38
Vendor Prices
Normal1x Orb of Alchemy
Vendor Offer
1x Scroll Fragment
Metadata
Item class: Support Skill Gems
Metadata ID: Metadata/Items/Gems/SupportGemDecay

Decay Support is a support gem that grants a chaos damage over time to the supported skill.

Skill functions and interactions

Being a chaos damage over time gem, Decay's damage is affected by any passives or items that increase Chaos damage or increase Damage Over Time. Skill Effect Duration will not affect the duration of Decay unless it is linked to a skill with the duration tag.

Because Decay deals damage, it can benefit from other support gems it is linked with. Decay is not strictly a skill, but can inherit some skill gem tags of the supported skill, namely those that change the source of damage to something other than the player (such as totems and minions). Support gems that have the wording supported skills deal x% more/less/increased/decreased damage will affect Decay's damage, provided the skill gem is eligible to be supported. For example, Less Duration SupportLess Duration SupportSupport, Duration
Icon: d
Level: (1-20)
Cost & Reservation Multiplier: 120%
Requires Level 31Supports any skill that has a duration.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% less Skill Effect DurationSupported Skills have 0.5% increased Attack and Cast SpeedBleeding inflicted by Supported Skills deals Damage 0.5% fasterSupported Skills have (40-49)% less Skill Effect Duration
Supported Skills deal (10-19)% more 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.
cannot affect Decay unless it is linked with a skill that has the duration tag, since Decay does not natively have the duration tag. Likewise, Decay's damage will be increased if linked with a minion skill and Minion Damage SupportMinion Damage SupportSupport, Minion
Icon: d
Level: (1-20)
Cost & Reservation Multiplier: 130%
Requires Level 8Supports skills which create Minions.Per 1% Quality:1Superior2Anomalous3DivergentMinions from Supported Skills deal 0.5% increased DamageMinions from Supported Skills have 0.15% chance to deal Double DamageMinions from Supported Skills deal 2% increased Damage with AilmentsMinions from Supported Skills deal (25-49)% more 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.
, as well as increased Minion Damage passives and items.

The supported skill can be given the duration gem tag using Arcane Surge SupportArcane Surge SupportSupport, Spell, Duration
Icon: N
Level: (1-20)
Cost & Reservation Multiplier: 130%
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, or mines.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Spell DamageArcane Surge grants 0.01% of Mana Regenerated per secondArcane Surge lasts 0.1 secondsGain Arcane Surge after Spending a total of (15-400) Mana with Supported Skills
Arcane Surge grants (10-20)% more Spell Damage
Arcane Surge grants (10-19)% increased Cast Speed
Arcane Surge grants (0.5-1)% of Mana Regenerated per second
Arcane Surge lasts 4 seconds
Supported Skills deal (10-19)% more Spell Damage while you have Arcane Surge
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.
(for spells only) or Lifetap SupportLifetap SupportSupport, Duration
Icon: T
Level: (1-20)
Cost & Reservation Multiplier: 300%
Cooldown Time: 0.00 sec
Requires Level 8Supports any skill. Minions cannot gain the Lifetap buff.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased DamageSupported Skills have 0.5% increased Life CostLifetap lasts +0.1 secondsSupported Skills deal (10-29)% more Damage while you have Lifetap
Gain Lifetap after Spending a total of (17-205) Life with a Supported Skill
Lifetap lasts 4 seconds
Supported Skills Cost Life instead of Mana
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.
(all skills). For example, FireballFireballProjectile, Spell, AoE, Fire
Level: (1-20)
Cost: (6-25) Mana
Cast Time: 0.75 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 240%
Projectile Speed: 1040
Radius: 9
Unleashes a ball of fire towards a target which explodes, damaging nearby foes.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Projectile Speed2% reduced Projectile Speed
3% increased Area of Effect
3% increased Effect of non-Damaging Ailments on Enemies
-2% more Damage with Ignite
0.25% chance to Debilitate Enemies for 1 second on Hit
Deals (9-1095) to (14-1643) Fire Damage
(20-39)% chance to Ignite enemies
(50-88)% more Damage with Ignite
Projectiles gain Radius as they travel farther, up to +(0-9) Radius
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Fireball skill icon.png
does not have the duration gem tag natively but gains it on being linked to one of the aforementioned supports.

Certain damage modifiers from Skills will influence Decay's damage. Damage effectiveness does not apply, but "% more damage" or "% of damage per stage" modifiers do, such as Charged Dash, Storm Burst, and Arc allow Decay to deal increased damage. Similar modifiers that are restricted to "Spell Damage" or "Hits and Ailments" do not apply, however.[1]

Suggested Support Gems

  • Added Chaos Damage SupportAdded Chaos Damage SupportChaos, Support
    Icon: H
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Requires Level 31Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported 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.
    (Quality only)
  • Cast on Death SupportCast on Death SupportSupport, Spell, Trigger
    Icon: !
    Level: (1-20)
    Cost & Reservation Multiplier: 0%
    Requires Level 38Each supported spell skill will be triggered when you die. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills that reserve mana cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 3% increased Area of Effect while DeadSupported Skills have +5% to Critical Strike Chance while DeadSupported Skills have 3% increased Skill Effect Duration while Dead100% chance to Trigger Supported Non-Minion Spells on Death
    You cannot Cast Supported Triggerable Spells directly
    (0-304)% more Damage while Dead
    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.
  • Cast on Melee Kill SupportCast on Melee Kill SupportSupport, Melee, Attack, Spell, Trigger
    Icon: &
    Level: (1-20)
    Cost & Reservation Multiplier: 140%
    Cooldown Time: 0.15 sec
    Requires Level 38Must 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 that reserve mana cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Attack Damage
    Supported Skills deal 0.5% increased Spell Damage
    Supported Skills deal 3% increased Attack DamageSupported Skills have 1% increased Cooldown Recovery Rate
    Supported Melee Attacks will Trigger a Supported Spell on Kill
    Supported Spells have (20-39)% more Spell Damage
    You cannot Cast Supported Triggerable Spells directly
    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.
    (Quality only)
  • Cast when Damage Taken SupportCast when Damage Taken SupportSupport, Spell, Trigger
    Icon: !
    Level: (1-20)
    Cost & Reservation Multiplier: 250%
    Cooldown Time: 0.25 sec
    Can Store 1 Use(s)
    Requires Level 38Each 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.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased DamageSupported Skills have 1% increased Skill Effect DurationSupported Skills require 1% reduced amount of Damage taken to TriggerTrigger Supported Spells when you take a total of (528-3272) Damage
    Supported Skills deal (-70-6)% more Damage
    This Gem can only Support Skill Gems requiring Level (38-70) or lower
    You cannot Cast Supported Triggerable Spells directly
    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.
  • Culling Strike SupportCulling Strike SupportSupport
    Icon: X
    Level: (1-20)
    Cost & Reservation Multiplier: 110%
    Requires Level 18Supports any skill that hits enemies. If enemies are left below 10% of maximum life after being hit by these skills, they will be killed.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Attack Speed
    Supported Skills have 0.5% increased Cast Speed
    Supported Skills deal 3% increased Damage with Hits against Enemies that are on Low LifeRecover 0.1% of Life when Supported Skills Cull an Enemy
    Kill Enemies that have 10% Life or lower when Hit by Supported Skills
    Supported Skills deal (0-38)% increased 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.
  • Damage on Full Life SupportDamage on Full Life SupportAttack, Support
    Icon: f
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Requires Level 18Supports attack skills, providing a bonus to all damage dealt by those skills while your life is full.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased DamageSupported Skills Leech 0.025% of Attack Damage Leeched as LifeSupported Skills deal 2% increased Damage with Hits and Ailments against Enemies that are on Full LifeSupported Attack Skills deal (30-49)% more Damage while on Full LifeThis 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.
    (Quality only)
  • Deadly Ailments SupportDeadly Ailments SupportSupport
    Icon: i
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Requires Level 18Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Damage over TimeSupported Skills have 1% increased Duration of Ailments on EnemiesSupported Skills have +0.5% to Damage over Time Multiplier
    Supported Skills deal 3% less Damage with Hits
    Supported Skills deal (45-64)% more Damage with Ailments
    Supported Skills deal 10% less Damage with Hits
    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.
    (Quality only, as Decay is not an ailment)
  • Efficacy SupportEfficacy SupportSupport, Duration
    Icon: a
    Level: (1-20)
    Cost & Reservation Multiplier: 140%
    Requires Level 8Supports any skill that deals damage or has a duration.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Damage over TimeSupported Skills have 0.5% increased Skill Effect DurationSupported Skills have 0.5% reduced Mana CostSupported Skills deal (15-24)% more Damage over Time
    Supported Skills have (15-24)% increased Skill Effect 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.
    (Only the damage over time increase, as Decay is not a spell; this will also increase the duration, regardless of the skill's tags)
  • Energy Leech SupportEnergy Leech SupportSupport
    Icon: g
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Requires Level 31Supports any skill that hits enemies, causing those hits to leech energy shield based on damage dealt.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Damage while Leeching Energy ShieldSupported Skills deal 0.5% increased Damage while on Full Energy ShieldSupported Skills have 2% increased Maximum Recovery per Energy Shield LeechSupported Skills have (1.5-1.9)% of Damage Leeched as Energy Shield
    Supported Skills deal (12-24)% more Damage while on Full Energy Shield
    Supported Skills deal (20-39)% more Damage while Leeching Energy Shield
    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.
    (With energy shield)
  • Impending Doom SupportImpending Doom SupportSupport, Hex, Spell, AoE, Chaos
    Icon: X
    Level: (1-20)
    Cast Time: 1.00 sec
    Requires Level 31Deals chaos damage in an area based on the amount of Doom on the triggering Hex.Per 1% Quality:1Superior2Anomalous3DivergentDoom Blast has 0.5% increased Area of EffectCurse Skills have 2% reduced Skill Effect DurationDoom Blast has +0.05 Cooldown Use
    Doom Blast deals 1.25% less Damage per 5 Doom on Hex
    Trigger Doom Blast when a Hex from Supported Curse Skills ends
    Deals (25-216) to (37-325) Chaos Damage
    60% more Damage per 5 Doom on Hex
    Trigger This Skill when a Hex from Supported Skills ends
    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.
    Doom Blast skill icon.png
    (Hex gem required and only the '60% more damage per 5 Doom' portion effects Decay, which results in 480% more damage at 40 Doom)
  • Less Duration SupportLess Duration SupportSupport, Duration
    Icon: d
    Level: (1-20)
    Cost & Reservation Multiplier: 120%
    Requires Level 31Supports any skill that has a duration.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% less Skill Effect DurationSupported Skills have 0.5% increased Attack and Cast SpeedBleeding inflicted by Supported Skills deals Damage 0.5% fasterSupported Skills have (40-49)% less Skill Effect Duration
    Supported Skills deal (10-19)% more 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.
    (If the linked skill has a duration tag)
  • Lifetap SupportLifetap SupportSupport, Duration
    Icon: T
    Level: (1-20)
    Cost & Reservation Multiplier: 300%
    Cooldown Time: 0.00 sec
    Requires Level 8Supports any skill. Minions cannot gain the Lifetap buff.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased DamageSupported Skills have 0.5% increased Life CostLifetap lasts +0.1 secondsSupported Skills deal (10-29)% more Damage while you have Lifetap
    Gain Lifetap after Spending a total of (17-205) Life with a Supported Skill
    Lifetap lasts 4 seconds
    Supported Skills Cost Life instead of Mana
    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.
  • Swift Affliction SupportSwift Affliction SupportSupport, Duration
    Icon: r
    Level: (1-20)
    Cost & Reservation Multiplier: 125%
    Requires Level 31Supports any skill that has a duration, or can hit enemies to inflict ailments on them.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Damage over TimeSupported Skills have 0.25% increased Attack and Cast Speed
    Supported Skills have 0.5% increased Projectile Speed
    You and Enemies have 1% increased Movement Speed while inflicted with an Ailment from Supported Skills
    Supported Skills deal (25-44)% more Damage over Time
    15% reduced Duration of Supported Skills and Damaging Ailments they inflict
    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.
    (This will also reduce the duration, regardless of the skill's tags)
  • Void Manipulation SupportVoid Manipulation SupportChaos, Support
    Icon: v
    Level: (1-20)
    Cost & Reservation Multiplier: 120%
    Requires Level 8Supports any skill that deals damage.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Chaos DamageSupported Skills have 0.25% increased Area of Effect
    Supported Skills have 0.25% increased Attack and Cast Speed
    Supported Skills have 0.02% of Chaos Damage Leeched as Life
    Supported Skills deal (20-39)% more Chaos Damage
    Supported Skills deal 25% reduced Elemental 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.

Known Tags That Can Be Inherited

Gem level progression

LevelRequired LevelRequired DexterityRequired IntelligenceChaos Damage
per sec
Exp.Total Exp.
138274012000
2402941137388734388734
3423043156477437866171
44431451775837861449957
54633472017103592160316
648344922813555113515827
750355125811388774654704
852375329213682336022937
954385532916383387661275
1056395737119566489617923
11584158419365518413273107
12604260471301732716290434
13624362530357623219866666
14644464596423166724098333
15654565632239507826493411
16664666670842106334914474
176746677101615998351074457
186847687524117036792244824
1969486979686794448179039272
20704870843157405063336444335
21725072945N/AN/A
2274N/AN/A1059N/AN/A
2376N/AN/A1186N/AN/A
2478N/AN/A1328N/AN/A
2580N/AN/A1485N/AN/A
2682N/AN/A1660N/AN/A
2784N/AN/A1855N/AN/A
2886N/AN/A2073N/AN/A
2988N/AN/A2314N/AN/A
3090N/AN/A2583N/AN/A
3191N/AN/A2728N/AN/A
3292N/AN/A2881N/AN/A
3393N/AN/A3043N/AN/A
3494N/AN/A3213N/AN/A
3595N/AN/A3393N/AN/A
3696N/AN/A3582N/AN/A
3797N/AN/A3781N/AN/A
3898N/AN/A3992N/AN/A
3999N/AN/A4213N/AN/A
40100N/AN/A4447N/AN/A

Item acquisition
Questionmark.png

Upgrade paths

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

AmountIngredientGeneral
Notes
Type
9Gift of the Gemling QueenGift of the Gemling Queen9Level 20 Support GemOur Lady Dialla,
as a symbol of our progress,
shines greater than all the gems.
random level 20 Support gemAutomatic
7Dialla's SubjugationDialla's Subjugation7Superior Support Gem
Quality: +23%
Corrupted
A symbol of beauty and innocence
The gems corrupted her mind
Malachai corrupted her gems
All but a glimmer of
greatness lost in madness
random corrupted superior Support gem with 23% qualityAutomatic
3The Bitter BlossomThe Bitter Blossom3Level 21 Chaos Gem
Quality: +23%
Corrupted
The pain you feel is of no consequence, it is evolution, to be made whole within something greater.
random corrupted superior level 21 Chaos gem with 23% qualityAutomatic
8Dying AnguishDying Anguish8Level 19 Gem
Alternative Quality: +19%
Moribund, he gazed upon the journey taken as blood trickled down his chin. His eye closed on the city ahead that he would never call home.
random level 19 gem with 19% alternative qualityAutomatic
1Gemcutter's IncubatorGemcutter's IncubatorAdds an incubated Quality Gem item to an equippable item
Item drops after killing # monsters
Quality GemRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
random superior gemAutomatic
6The 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 gemAutomatic
3Gemcutter'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 with 20% qualityAutomatic
1The VoidThe Void1Reach into the Void and claim your prize.random divination card set exchangeAutomatic

Quest reward

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

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
The Eternal Nightmare
Act 4

Vendor reward

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

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
The Eternal Nightmare
Act 4
Petarus and Vanja
Fallen from Grace
Act 6
Lilly Roth

Version history

Version Changes
3.6.0
  • Now deals 120 Chaos Damage per second at gem level 1 (from 96), up to 843 Chaos Damage per second at gem level 20 (from 675).
3.0.0
  • Decay Support has been added to the game.

References

  1. You Tube is blocked due to spam, see "Decay ft. Storm Burst"
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