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Chain SupportSupport, Chaining, Projectile
Icon: c
Level: (1-20)
Cost & Reservation Multiplier: 150%
Requires Level 38Supports projectile skills, and any other skills that chain.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Projectile SpeedSupported Skills have 1% increased Chaining rangeProjectiles Fired by Supported Skills have 4% chance not to Pierce EnemiesSupported Skills Chain +2 times
Supported Skills deal (30-11)% 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.
Chain 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/SupportGemChain
For the awakened variant, see Awakened Chain Support.

Chain is a support gem that causes any projectiles created by the linked skill to chain when they hit an enemy. When this happens, the projectile targets another enemy in range and changes direction to fly towards second enemy. It will continue to chain until all the chains are used up. This gem adds 2 to the number of times a projectile can chain.

The gem also works with non-projectile skills that can chain, which are currently Orb of StormsOrb of StormsLightning, Spell, Duration, AoE, Chaining, Orb
Level: (1-20)
Cost: (4-16) Mana
Cooldown Time: 0.50 sec
Can Store 1 Use(s)
Cast Time: 0.50 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: 65%
Creates a stationary electrical orb that frequently unleashes a splitting bolt of lightning at a nearby enemy. Modifiers to cast speed will increase how frequently it does this. Using a lightning skill while inside the orb's cloud unleashes additional bolts. Casting this skill again will replace the previous orb.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Lightning DamageBeams Split towards 0.1 additional targets1% increased Cast Speed
1% less Skill Effect Duration
Deals (2-185) to (7-555) Lightning Damage
Base duration is 6 seconds
Beams Split towards (2-4) additional targets
Strikes every (1.5-1.02) seconds
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Orb of Storms skill icon.png
, Dark PactDark PactMinion, Spell, AoE, Chaining, Chaos, Nova
Level: (1-20)
Cost: (7-13) Mana
Cast Time: 0.50 sec
Critical Strike Chance: 5.00%
Requires Level 28This spell removes some life from one of your Skeleton minions near you or the targeted location to deal chaos damage in an area around it. This effect will chain to your other nearby skeletons. If you have no skeletons near you or the targeted location, it will sacrifice your own life to deal damage instead.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Area of EffectSacrifices 0.05% of Skeleton's Life to deal that much Chaos DamageMinions recover 0.1% of Life on HitSacrifices 6% of Skeleton's Life to deal that much Chaos Damage
Deals (24-241) to (36-362) Chaos Damage
Chains +2 Times
Uses your Life if no Skeletons in range
(0-76)% more Damage with Hits and Ailments if using your Life
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Dark Pact skill icon.png
, Tempest ShieldTempest ShieldSpell, Lightning, Chaining, Duration
Level: (1-20)
Cost: (7-16) Mana
Cast Time: 0.25 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 60%
Requires Level 16Enchants your shield with the power of storms, which lashes out to deal arcing lightning damage to attackers when you block them. Blocking refreshes the duration of Tempest Shield.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Lightning DamageChains +0.1 Times+0.05% Chance to Block Attack Damage while holding a Shield
+0.05% Chance to Block Spell Damage while holding a Shield
Deals (24-284) to (36-426) Lightning Damage
+3% Chance to Block Attack Damage while holding a Shield
Chains +1 Times
Base duration is 12 seconds
+3% Chance to Block Spell Damage while holding a Shield
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Tempest Shield skill icon.png
, Wild StrikeWild StrikeAttack, Melee, Strike, Lightning, Cold, Fire, Projectile, AoE, Chaining
Level: (1-20)
Cost: 6 Mana
Attack Damage: (160-185)% of base
Effectiveness of Added Damage: (160-185)%
Projectile Speed: 1800
Requires Level 28Your melee weapon strikes enemies, converting physical damage to a random element. Then, depending on the element chosen, it releases a fiery explosion, an arcing bolt of lightning, or an icy wave. It will avoid choosing the same element twice in a row.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% increased Elemental Damage1% increased Area of EffectFires 0.1 additional Projectiles1% increased Chaining rangeDeals (160-185)% of Base Attack Damage
100% of Physical Damage Converted to Fire, Cold or Lightning Damage
Beams Chain (4-7) Times
Fires 2 additional Projectiles
Projectiles Pierce all Targets
(0-19)% increased Area of Effect
+(0-2) to Melee Strike Range
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Wild Strike skill icon.png
, ArcArcSpell, Chaining, Lightning
Level: (1-20)
Cost: (8-23) Mana
Cast Time: 0.70 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: 80%
Requires Level 12An arc of lightning stretches from the caster to a targeted enemy and chains on to other nearby enemies. Each time the main beam chains it will also chain to a second enemy, but that secondary arc cannot chain further.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal0.5% chance to Shock enemies1% increased Chaining range0.5% increased Damage for each time this Skill has Chained1% reduced Enemy Stun ThresholdDeals (6-133) to (33-754) Lightning Damage
10% chance to Shock enemies
Chains +(4-7) Times
(10-29)% increased Effect of Lightning Ailments
15% more Damage for each remaining Chain
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Arc skill icon.png
, and Vaal ArcVaal ArcVaal, Spell, Chaining, Lightning, Duration
Level: (1-20)
Souls Per Use: 25
Can Store 1 Use(s)
Soul Gain Prevention: 0 sec
Cast Time: 0.80 sec
Critical Strike Chance: 5.00%
Effectiveness of Added Damage: 180%
Requires Level 12A shocking arc of lightning stretches from the caster to a targeted enemy and chains to other nearby enemies. Each time the beam chains it will also chain simultaneously to a second enemy, but no enemy can be hit twice by the beams. Also grants a buff making you lucky when damaging enemies with Arc for a short duration.Per 1% Quality:1Superior1.5% increased Duration of Lightning AilmentsBase duration is 4 seconds
Deals (38-924) to (64-1539) Lightning Damage
100% chance to Shock enemies
Chains +(5-9) Times
100% increased Effect of Lightning Ailments
100% increased Duration of Lightning Ailments
15% more Damage for each remaining Chain
Modifiers to Buff Duration also apply to this Skill's Soul Gain Prevention
Corrupted
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Vaal Arc skill icon.png
.

See chaining for more information.

Gem level progression

LevelRequired LevelRequired Dexterityless
Damage
Exp.Total Exp.
1386330%00
2406629%388734388734
3426928%477437866171
4447227%5837861449957
5467526%7103592160316
6487825%13555113515827
7508124%11388774654704
8528423%13682336022937
9548722%16383387661275
10569021%19566489617923
11589320%365518413273107
12609619%301732716290434
13629918%357623219866666
146410217%423166724098333
156510316%239507826493411
166610515%842106334914474
176710614%1615998351074457
186810813%4117036792244824
196910912%86794448179039272
207011111%157405063336444335
217211410%N/AN/A
2274N/A9%N/AN/A
2376N/A8%N/AN/A
2478N/A7%N/AN/A
2580N/A6%N/AN/A
2682N/A5%N/AN/A
2784N/A4%N/AN/A
2886N/A3%N/AN/A
2988N/A2%N/AN/A
3090N/A1%N/AN/A
3191N/A1%N/AN/A
3292N/AN/AN/AN/A
3393N/AN/AN/AN/A
3494N/AN/AN/AN/A
3595N/AN/AN/AN/A
3696N/AN/AN/AN/A
3797N/AN/AN/AN/A
3898N/AN/AN/AN/A
3999N/AN/AN/AN/A
40100N/AN/AN/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
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
3.15.0
  • Now has a 160% Cost and Reservation Multiplier (previously 150%).
  • Quality no longer grants “Supported Skills have 0-20% increased Projectile Speed”. It now grants “Supported Skills have 0-10% increased Chaining Range”.
  • Quality on the Anomalous Chain Support no longer grants “Supported Skills have 0-20% increased Chaining Range”. It now grants “Supported Skills have 0-10% increased Projectile Speed”.
3.6.0
  • Now causes supported skills to deal 30% less damage at gem level 1 (from 50%), up to 11% less damage at gem level 20 (from 31%).
3.0.0
  • Chain Support's damage penalty now only applies to hits.
2.0.0
  • The mana multiplier has been reduced from 175% to 150%.
1.2.0
  • The mana multiplier has been reduced from 200% to 175%.
0.10.0
  • Damage penalty has been increased from -40% to -50%
  • The number of chains has been reduced from 3 to 2.
0.9.13h
  • Fixed a bug with the graphical effects of projectiles augmented by Chain.
0.9.13
  • Chain has been added to the game.