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Chain Support

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Chain SupportSupport, Chaining, Projectile
Icon: c
Mana Multiplier: 150%
Requires Level 38Supports projectile skills, and any other skills that chain.Per 1% Quality:
Supported Skills have 1% increased Projectile Speed
Supported Skills Chain +2 times
Supported Skills deal (50-31)% 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
Level: 38
Purchase Costs
Normal1x Orb of Alchemy
Sell Price
1x Scroll Fragment

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
Mana Cost: (11 to 28)
Can store 1 use(s)
Cooldown Time: 0.50 sec
Cast Time: 0.50 sec
Critical Strike Chance: 5.00%
Damage Effectiveness: 20%
Requires Level 4Creates a stationary electrical orb that frequently unleashes a splitting bolt of lightning at a nearby enemy. Using another lightning skill while inside the orb's cloud unleashes additional bolts. Casting this skill again will replace the previous orb. You can only cast this spell yourself, directly.Per 1% Quality:
1% increased Lightning Damage
Deals (1-59) to (3-177) Lightning Damage
Base duration is 6 seconds
Beams Split to hit (2-4) extra targets
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
Mana Cost: (7 to 14)
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:
0.5% increased Area of Effect
6% of Target's Life sacrificed to deal Area of Effect Chaos Damage
Deals (20-201) to (30-301) Chaos Damage
Chains +2 Times
+4 Radius if using your Life
Uses your Life if no Skeletons in range
(0-95)% 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
Mana Cost: (17 to 21)
Cast Time: 0.50 sec
Critical Strike Chance: 6.00%
Damage Effectiveness: 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:
1% increased Lightning Damage
Deals (24-284) to (36-426) Lightning Damage
Additional 3% Shield Block Chance
Chains +1 Times
Base duration is 12 seconds
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 StrikeProjectile, Attack, Melee, Lightning, Cold, Fire, AoE, Chaining
Mana Cost: 6
Cast Time: 1.00 sec
Damage Effectiveness: (130% to 176%)
Projectile Speed: 1800
Requires Level 28Your melee weapon strikes an enemy, 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.Per 1% Quality:
1% increased Elemental Damage
Deals (130-175.6)% of Base Damage
100% of Physical Damage Converted to Fire, Cold or Lightning Damage
Chains +(4-7) Times
2 additional Projectiles
Projectiles Pierce all Targets
(0-19)% increased Area of Effect
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
Mana Cost: (9 to 26)
Cast Time: 0.80 sec
Critical Strike Chance: 5.00%
Damage Effectiveness: 70%
Requires Level 12An arc of lightning stretches from the caster to a targeted nearby enemy and chains on to additional targets.Per 1% Quality:
0.5% chance to Shock enemies
Deals (2-47) to (35-886) Lightning Damage
10% chance to Shock enemies
Chains +(2-7) Times
(10-29)% increased Effect of Shock
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
Souls per use: 32 (N) / 48 (C) / 64 (M)
Can store 1 use(s)
Cast Time: 0.80 sec
Critical Strike Chance: 5.00%
Damage Effectiveness: 80%
Requires Level 12An arc of lightning stretches from the caster to a targeted nearby enemy and chains on to many additional targets.Per 1% Quality:
1.5% increased Shock Duration on enemies
Deals (2-49) to (35-938) Lightning Damage
100% chance to Shock enemies
Chains +40 Times
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

LevelLvl.dexterityless
Damage
Exp.Total Exp.
1386350%00
2406649%388,734388,734
3426948%477,437866,171
4447247%583,7861,449,957
5467546%710,3592,160,316
6487845%1,355,5113,515,827
7508144%1,138,8774,654,704
8528443%1,368,2336,022,937
9548742%1,638,3387,661,275
10569041%1,956,6489,617,923
11589340%3,655,18413,273,107
12609639%3,017,32716,290,434
13629938%3,576,23219,866,666
146410237%4,231,66724,098,333
156510336%2,395,07826,493,411
166610535%8,421,06334,914,474
176710634%16,159,98351,074,457
186810833%41,170,36792,244,824
196910932%86,794,448179,039,272
207011131%157,405,063336,444,335
217211430%N/AN/A
2274N/A29%N/AN/A
2376N/A28%N/AN/A
2478N/A27%N/AN/A
2580N/A26%N/AN/A
2682N/A25%N/AN/A
2784N/A24%N/AN/A
2886N/A23%N/AN/A
2988N/A22%N/AN/A
3090N/A21%N/AN/A

Quest reward

This skill is given as quest reward for the following quests:
ClassMarauderTemplarWitchShadowRangerDuelistScion
Quest
The Eternal Nightmare*The items are awarded for this quest when Dialla activates the device
Act 4
yes
yes
yes
yes
yes
yes
yes

Vendor reward

This skill can be bought at the listed npc vendors after completing the following quests:
ClassMarauderTemplarWitchShadowRangerDuelistScion
Quest
The Eternal Nightmare*The items are awarded for this quest when Dialla activates the device
Act 4
Petarus and Vanja
yes
yes
yes
yes
yes
yes
yes
Fallen from Grace
Act 6
Lilly Roth
yes

Version history

Version Changes
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.