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Decay Support

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Decay SupportChaos, Support
Icon: D
Mana Multiplier: 130%
Requires Level 38Supports any skill that hits enemies.Per 1% Quality:
Supported Skills deal 0.5% increased Chaos Damage
Supported 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
Level: 38
Purchase Costs
Normal1x Orb of Alchemy
Sell Price
1x Scroll Fragment
Miscellaneous
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
Mana Multiplier: 120%
Requires Level 31Supports any skill that has a duration.Per 1% Quality:
Supported Skills have 0.5% reduced Skill Effect Duration
Supported 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
Mana Multiplier: 130%
Requires Level 8Supports skills which create Minions.Per 1% Quality:
Minions from Supported Skills deal 0.75% increased Damage
Minions from Supported Skills deal (30-49)% 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.

Support Gems That Always Work

  • Cast on Melee Kill SupportCast on Melee Kill SupportSupport, Melee, Attack, Spell, Trigger
    Icon: &
    Mana Multiplier: 140%
    Can Store 1 Use(s)
    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:
    Supported Skills deal 0.5% increased Attack Damage
    Supported Melee Attacks will Trigger a Supported Spell on KillThis 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.
    (High-quality only)
  • Cast when Damage Taken SupportCast when Damage Taken SupportSupport, Spell, Trigger
    Icon: !
    Can Store 1 Use(s)
    Cooldown Time: 0.25 sec
    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 that reserve mana cannot be triggered.Per 1% Quality:
    Supported Skills deal 0.5% increased Damage
    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
    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
    Mana 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:
    Supported Skills deal 0.5% increased Damage
    Supported 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.
    (High-quality only)
  • Added Chaos Damage SupportAdded Chaos Damage SupportChaos, Support
    Icon: H
    Mana Multiplier: 130%
    Requires Level 31Supports any skill that hits enemies.Per 1% Quality:
    Supported Skills deal 0.5% increased Chaos Damage
    Supported 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.
    (High-quality only)
  • Efficacy SupportEfficacy SupportSupport, Duration
    Icon: a
    Mana Multiplier: 130%
    Requires Level 31Supports any skill that deals damage or has a duration.Per 1% Quality:
    Supported Skills deal 0.5% increased Damage over Time
    Supported Skills deal (10-20)% more Spell Damage
    Supported Skills deal (15-24)% more Damage over Time
    Supported Skills have (10-16)% 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.)
  • Cast on Death SupportCast on Death SupportSupport, Spell, Trigger
    Icon: !
    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:
    Supported Skills have 3% increased Area of Effect while Dead
    100% 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.
  • Culling Strike SupportCulling Strike SupportSupport
    Icon: X
    Mana 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:
    Supported Skills have 0.5% increased Attack Speed
    Supported Skills have 0.5% increased Cast Speed
    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.
  • Deadly Ailments SupportDeadly Ailments SupportSupport
    Icon: i
    Mana Multiplier: 130%
    Requires Level 18Supports any skill that hits enemies.Per 1% Quality:
    Supported Skills deal 0.5% increased Damage over Time
    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.
    (High-quality only, as Decay is not an ailment.)
  • Swift Affliction SupportSwift Affliction SupportSupport, Duration
    Icon: r
    Mana Multiplier: 125%
    Requires Level 31Supports any skill that has a duration, or can hit enemies to inflict ailments on them.Per 1% Quality:
    Supported Skills deal 0.5% increased Damage over Time
    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
    Mana Multiplier: 120%
    Requires Level 8Supports any skill that deals damage.Per 1% Quality:
    Supported Skills deal 0.5% increased Chaos Damage
    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

LevelLvl.dexterityintelligenceChaos Damage
per sec
Exp.Total Exp.
138274012000
2402941137388,734388,734
3423043156477,437866,171
4443145177583,7861,449,957
5463347201710,3592,160,316
64834492281,355,5113,515,827
75035512581,138,8774,654,704
85237532921,368,2336,022,937
95438553291,638,3387,661,275
105639573711,956,6489,617,923
115841584193,655,18413,273,107
126042604713,017,32716,290,434
136243625303,576,23219,866,666
146444645964,231,66724,098,333
156545656322,395,07826,493,411
166646666708,421,06334,914,474
1767466771016,159,98351,074,457
1868476875241,170,36792,244,824
1969486979686,794,448179,039,272
20704870843157,405,063336,444,335
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 (Q23)Automatic
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 (Q20)Automatic

Quest reward

This item is given as 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