Chain Support

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 Chaining rangeSupported Skills have 1% increased Projectile SpeedProjectiles Fired by Supported Skills have 4% chance not to Pierce EnemiesSupported Skills Chain +2 times
Supported Skills deal (30-11)% less Damage with HitsThis 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.Acquisition
Area level: 38Vendor Prices

Normal

1x Orb of Alchemy

Vendor Offer
1x Scroll FragmentMetadata
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 DurationDeals (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) secondsPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., 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 LifePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., 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 Spell Damage while holding a ShieldDeals (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 ShieldPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., Wild StrikeWild StrikeAttack, Melee, Strike, Lightning, Cold, Fire, Projectile, AoE, Chaining, Prismatic
Level: (1-20)
Cost: 6 Mana
Attack Damage: (160-185)% of base
Effectiveness of Added Damage: (160-185)%
Projectile Speed: 1800Requires 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 RangePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., 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:1Superior2Anomalous3Divergent4Phantasmalchain 1 times1% 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 ChainPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., 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
CorruptedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket..

See chaining for more information.

Gem level progression

Level			less Damage	Exp.	Total Exp.
1	38	63	30%	0	0
2	40	66	29%	388734	388734
3	42	69	28%	477437	866171
4	44	72	27%	583786	1449957
5	46	75	26%	710359	2160316
6	48	78	25%	1355511	3515827
7	50	81	24%	1138877	4654704
8	52	84	23%	1368233	6022937
9	54	87	22%	1638338	7661275
10	56	90	21%	1956648	9617923
11	58	93	20%	3655184	13273107
12	60	96	19%	3017327	16290434
13	62	99	18%	3576232	19866666
14	64	102	17%	4231667	24098333
15	65	103	16%	2395078	26493411
16	66	105	15%	8421063	34914474
17	67	106	14%	16159983	51074457
18	68	108	13%	41170367	92244824
19	69	109	12%	86794448	179039272
20	70	111	11%	157405063	336444335
21	72	114	10%	N/A	N/A
22	74	N/A	9%	N/A	N/A
23	76	N/A	8%	N/A	N/A
24	78	N/A	7%	N/A	N/A
25	80	N/A	6%	N/A	N/A
26	82	N/A	5%	N/A	N/A
27	84	N/A	4%	N/A	N/A
28	86	N/A	3%	N/A	N/A
29	88	N/A	2%	N/A	N/A
30	90	N/A	1%	N/A	N/A
31	91	N/A	1%	N/A	N/A
32	92	N/A	N/A	N/A	N/A
33	93	N/A	N/A	N/A	N/A
34	94	N/A	N/A	N/A	N/A
35	95	N/A	N/A	N/A	N/A
36	96	N/A	N/A	N/A	N/A
37	97	N/A	N/A	N/A	N/A
38	98	N/A	N/A	N/A	N/A
39	99	N/A	N/A	N/A	N/A
40	100	N/A	N/A	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
9	Gift 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 gem	Automatic
7	Dialla's SubjugationDialla's Subjugation7Superior Support Gem Quality: +23% CorruptedA 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% quality	Automatic
8	Dying 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 quality	Automatic
1	Gemcutter's IncubatorGemcutter's IncubatorAdds an incubated Quality Gem item to an equippable item Item drops after killing # monstersQuality 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 gem	Automatic
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
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 with 20% quality	Automatic
1	The VoidThe Void1Reach into the Void and claim your prize.	random divination card set exchange	Automatic

Quest reward

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

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
Quest ↓
The Eternal Nightmare Act 4	✓	✓	✓	✓	✓	✓	✓

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 ↓
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.