Decay Support

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Decay SupportChaos, Support
Icon: D
Level: (1-20)
Cost & Reservation Multiplier: 120%
Requires Level 38Supports any skill that hits enemies.Supported Skills inflict Decay on Hit, dealing (120-843) Chaos Damage per second for 8 seconds

Additional Effects per 1% Quality:
Supported Skills deal 0.5% increased Chaos 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.
Decay Support inventory icon.png
Acquisition
Drop level: 38
Vendor Offer
1x Scroll Fragment
Metadata
Item class: Support Gem
Metadata ID: Metadata/Items/Gems/SupportGemDecay

Decay Support is a support gem that makes hits from the supported skill inflict chaos damage over time.

Skill functions and interactions

Being a chaos damage over time gem, Decay's damage is affected by modifiers (from passive tree, items or skills) that apply to Chaos Damage, Damage over Time or overall (unspecified) Damage. The duration of Decay is not affected by modifiers to skill effect duration.[1]

Because Decay allows the skill to deal damage over time to enemies the skill hits, support gems that can apply to the skill can also modify the decay damage. Relevant support gems will include the wording supported skills deal x% more/less/increased/decreased damage/chaos damage/damage over time. If the decay damage is applied by a minion, trap, mine or totem, it will be affected by modifiers to these entities. Note that decay is not an ailment, so modifiers such as "damage with hits and ailments" will not apply.

Relevant conditional modifiers that affect Chaos damage, Damage Over Time or will also apply to Decay if these modifiers apply to the hit that applies to Decay. Such conditional modifiers include those from Charged Dash, Storm Burst, and Arc.

Decay does not add a skill effect with a duration to the skill it supports. If the skill does not innately have such a component, neither the skill nor Decay can be modified by Less Duration SupportLess Duration SupportSupport, Duration
Icon: d
Level: (1-20)
Cost & Reservation Multiplier: 130%
Requires Level 31Supports any skill that has a duration.Supported Skills have (40-49)% less Skill Effect Duration
Supported Skills deal (10-19)% more Damage

Additional Effects per 1% Quality:
Supported Skills have 0.5% less 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.
. If the skill is supported by Arcane Surge SupportArcane Surge SupportArcane, Support, 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, mines or skills with a reservation.Arcane Surge grants (10-20)% more Spell Damage
Arcane Surge grants (30-58)% increased Mana Regeneration rate
Arcane Surge lasts 4 seconds
Gain Arcane Surge after Spending a total of (15-400) Mana on
Upfront Costs and Effects of a Supported Skill
Supported Skills deal (10-19)% more Spell Damage while you have Arcane Surge

Additional Effects per 1% Quality:
Supported Skills deal 0.5% increased Spell 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.
(for spells only) or Lifetap SupportLifetap SupportSupport, Duration
Icon: T
Level: (1-20)
Cost & Reservation Multiplier: 300%
Requires Level 8Supports any skill. Minions cannot gain the Lifetap buff.Supported Skills deal (10-19)% more Damage while you have Lifetap
Gain Lifetap after Spending a total of (23-273) Life on Upfront
Costs and Effects of a Supported Skill
Lifetap lasts 4 seconds
Supported Skills Cost Life instead of Mana

Additional Effects per 1% Quality:
Supported Skills deal 0.5% 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.
(all skills), they gain a skill effect with a duration and can be supported by Less Duration.

Potential Support Gems

  • Efficacy SupportEfficacy SupportSupport, Duration
    Icon: a
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Requires Level 8Supports any skill that deals damage or has a duration.Supported Skills deal (15-24)% more Damage over Time
    Supported Skills have (15-24)% increased Skill Effect Duration

    Additional Effects per 1% Quality:
    Supported Skills deal 0.5% increased Damage over Time
    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.
  • Void Manipulation SupportVoid Manipulation SupportChaos, Support
    Icon: v
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Requires Level 8Supports any skill that deals damage.Supported Skills deal (20-34)% more Chaos Damage
    Supported Skills deal no Elemental Damage

    Additional Effects per 1% Quality:
    Supported Skills deal 0.5% increased Chaos 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.
  • Lifetap SupportLifetap SupportSupport, Duration
    Icon: T
    Level: (1-20)
    Cost & Reservation Multiplier: 300%
    Requires Level 8Supports any skill. Minions cannot gain the Lifetap buff.Supported Skills deal (10-19)% more Damage while you have Lifetap
    Gain Lifetap after Spending a total of (23-273) Life on Upfront
    Costs and Effects of a Supported Skill
    Lifetap lasts 4 seconds
    Supported Skills Cost Life instead of Mana

    Additional Effects per 1% Quality:
    Supported Skills deal 0.5% 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.
  • Cruelty SupportCruelty SupportSupport, Duration
    Icon: Y
    Level: (1-20)
    Cost & Reservation Multiplier: 140%
    Requires Level 18Supports any skill that hits enemies.Supported Skills deal (15-24)% more Damage with Hits
    Cruelty has a Base Duration of 4 seconds
    Hits from Supported Skills grant Cruelty
    (0-19)% increased Effect of Cruelty granted by Supported Skills

    Additional Effects per 1% Quality:
    0.25% increased Effect of Cruelty granted by Supported Skills
    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: 140%
    Requires Level 31Supports any skill that has a duration, or can hit enemies to inflict ailments on them.Supported Skills deal (25-39)% more Damage over Time
    25% less Duration of Supported Skills and Damaging Ailments they inflict

    Additional Effects per 1% Quality:
    Supported Skills deal 0.5% increased Damage over Time
    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 change the duration of Decay)
  • 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.Trigger 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

    Additional Effects per 1% Quality:
    Supported Skills deal 0.5% 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.
  • 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 with a reservation cannot be triggered.100% chance to Trigger Supported Non-Minion Spells on Death
    You cannot Cast Supported Triggerable Spells directly
    Supported Skills Cost nothing
    (0-304)% more Damage while Dead

    Additional Effects per 1% Quality:
    Supported Skills have 3% increased Area of Effect 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.

Support Gems that apply conditionally

  • Infused Channelling SupportInfused Channelling SupportSupport, Channelling, Duration
    Icon: b
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Supports any channelling skill, protecting you from damage while you channel it. Cannot support skills used by totems. Cannot modify the skills of minions.While Channelling a Supported Skill, take 8% less Damage from Hits of types matching the Skill Gem's Tags
    Supported Skills deal (15-24)% more Damage
    Gain Infusion after Channelling a Supported Skill for (1.6-1) second
    Infusion lasts 6 seconds after you finish Channelling
    Infusion grants 10% more Damage of Types matching Supported Skill Gem's tags

    Additional Effects per 1% Quality:
    Gain Infusion after Channelling a Supported Skill for -0.02 seconds
    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 applied by a channelled skill)
  • 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.Supported Skills have (1.5-1.9)% of Damage Leeched as Energy Shield
    Supported Skills deal (10-14)% more Damage while on Full Energy Shield
    Supported Skills deal (15-24)% more Damage while Leeching Energy Shield

    Additional Effects per 1% Quality:
    Supported Skills deal 0.5% increased 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.
    (if on full and/or while leeching energy shield)
  • Multistrike SupportMultistrike SupportAttack, Melee, Support
    Icon: 3
    Level: (1-20)
    Cost & Reservation Multiplier: 150%
    Requires Level 38Supports melee attack skills, making them repeat twice when used, targeting a random enemy each time. Cannot support Vaal skills, channelling skills or triggered skills.Supported Skills Repeat 2 additional times
    Supported Skills have (35-44)% more Melee Attack Speed
    First Repeat of Supported Skills deals 22% more Damage
    Second Repeat of Supported Skills deals 44% more Damage
    Supported Skills deal (30-20)% less Attack Damage

    Additional Effects per 1% Quality:
    Supported Skills deal 0.5% increased Melee Physical 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 applied by a melee attack supportable by Multistrike)
  • Vicious Projectiles SupportVicious Projectiles SupportProjectile, Attack, Physical, Chaos, Support
    Icon: d
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Requires Level 18Supports projectile attack skills.Supported Skills deal (30-49)% more Physical Projectile Attack Damage
    Supported Skills have 10% less Projectile Attack Speed
    Supported Skills deal (30-49)% more Physical Damage over Time
    Supported Skills deal (30-49)% more Chaos Damage over Time

    Additional Effects per 1% Quality:
    Supported Skills deal 0.5% increased Physical 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 applied by an projectile attack)
  • Trap and Mine Damage SupportTrap and Mine Damage SupportSupport, Trap, Mine
    Icon: W
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Requires Level 18Supports skills which throw Traps or Mines.Supported Skills deal (30-49)% more Trap and Mine Damage
    Supported Skills have 10% less Trap Throwing Speed
    Supported Skills have 10% less Mine Throwing Speed

    Additional Effects per 1% Quality:
    Supported Skills deal 0.5% 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.
    (if applied by a trap or mine)
  • Minion Damage SupportMinion Damage SupportSupport, Minion
    Icon: d
    Level: (1-20)
    Cost & Reservation Multiplier: 140%
    Requires Level 8Supports skills which create Minions.Minions from Supported Skills deal (25-39)% more Damage
    Minions from Supported Skills have 25% less Maximum Life

    Additional Effects per 1% Quality:
    Minions from Supported Skills deal 0.5% 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.
    , Predator SupportPredator SupportSupport, Minion, Spell, Duration
    Icon: h
    Level: (1-20)
    Cast Time: Instant
    Requires Level 18Applies a debuff to a specific enemy which signals your minions to consider that enemy to be the Prey. All minions from skills supported by any Predator Support will target that enemy. Only one enemy can be the Prey at a time. This skill cannot be used by Totems, Traps, or Mines.Minions from Supported Skills deal (15-24)% more Damage to the Prey
    Minions from Supported Skills deal (6-12)% more Damage
    Minions from Supported Skills always target the Prey if possible
    Base duration is 8 seconds

    Additional Effects per 1% Quality:
    Minions from Supported Skills deal 0.5% 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.
    , or Meat Shield SupportMeat Shield SupportSupport, Minion
    Icon: v
    Level: (1-20)
    Cost & Reservation Multiplier: 120%
    Requires Level 31Supports skills which create Minions.Minions from Supported Skills take (15-24)% less Damage
    Minions from Supported Skills deal (20-30)% more Damage to Enemies that are Near you
    Minions from Supported Skills have 20% chance to Taunt on Hit
    Supported Skills have (10-29)% increased Minion Movement Speed
    Minions from Supported Skills are Defensive

    Additional Effects per 1% Quality:
    Minions from Supported Skills have 0.25% additional Physical Damage Reduction
    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 applied by a minion)
  • Less Duration SupportLess Duration SupportSupport, Duration
    Icon: d
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Requires Level 31Supports any skill that has a duration.Supported Skills have (40-49)% less Skill Effect Duration
    Supported Skills deal (10-19)% more Damage

    Additional Effects per 1% Quality:
    Supported Skills have 0.5% less 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.
    (if applied by a skill that has a skill effect with a duration; does not change the duration of Decay)
  • Increased Duration SupportIncreased Duration SupportSupport, Duration
    Icon: D
    Level: (1-20)
    Cost & Reservation Multiplier: 130%
    Requires Level 31Supports any skill with a duration.Supported Skills have (45-64)% increased Skill Effect Duration

    Additional Effects per 1% Quality:
    Supported Skills have 0.5% 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.
    (if applied by Storm Burst)

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

Gem quality

TypeStats (per 1% quality)Weight
SuperiorSupported Skills deal 0.5% increased Chaos Damage50
AnomalousSupported Skills have 0.5% increased Skill Effect Duration100
DivergentSupported Skills have 0.5% of Physical Damage Converted to Chaos Damage20

Item acquisition
Questionmark.png

Decay Support can drop anywhere.

Recipes

Decay Support can be created from the following recipes:

AmountPartDescriptionMeta
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 level 21 Chaos gem with 23% qualityA
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 gemA
7Dialla's SubjugationDialla's Subjugation7Support 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 support gem with 23% qualityA
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 gemA
8Dying AnguishDying Anguish8Level 19 Gem
Alternate 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 qualityA
8The HookThe Hook8Level 21 Gem
Alternate Quality: +23%
Corrupted
Every obsession began with a single, innocent taste.
Random corrupted level 21 gem with 23% alternative qualityA
3Gemcutter'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% qualityA
1Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item
Item drops after killing {0} 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.
Shift click to unstack.
Random gem with 1–20% qualityA
1The VoidThe Void1Reach into the Void and claim your prize.Random divination card set exchangeA

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
3.15.0d
  • Decay Support now has a Cost and Reservation Multiplier of 120% (previously 130%).
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. Mark_GGG (July 30, 2022). "Decay duration not scaling". Official Path of Exile Website. Retrieved July 30, 2022.


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