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, 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: 110%Requires Level 4Creates a stationary electrical orb that strikes enemies in its area of effect with beams of lightning that can then split to hit more enemies. Modifiers to cast speed will increase how frequently it does this. Casting this skill again will replace the previous orb.Deals (3-304) to (8-913) Lightning Damage
Strikes every (3.50-2.55) seconds, and when you use a Lightning Skill near the Orb
Strikes every 0.50 seconds while Channelling a Lightning Skill near the Orb
Beam Splits towards 3 additional targets
Orb disappears after (10-29) Strikes

Additional Effects From 1-20% Quality:
Beam Splits towards (0.1-2) additional targetsPlace 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.Deals (24-241) to (36-362) Chaos Damage
Sacrifices 8% of Skeleton's Life to deal that much Chaos Damage
Chains +2 Times
Uses your Life if no Skeletons in range
(56-136)% more Damage with Hits and Ailments if using your Life

Additional Effects From 1-20% Quality:
Sacrifices +(0.1-2)% of Skeleton's Life to deal that much Chaos DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., Tempest ShieldTempest ShieldSpell, Lightning, Chaining
Level: (1-20)
Reservation: 25% Mana
Cooldown Time: 1.00 sec
Can Store 1 Use(s)
Cast Time: Instant
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 220%Requires Level 16Enchants your shield with the power of storms, which lashes out to deal arcing lightning damage to attackers when you block them.Deals (38-896) to (115-2688) Lightning Damage
Chains +1 Times
Buff grants +(18-25)% Chance to Block Spell Damage while holding a Shield
Buff grants Immunity to Shock

Additional Effects From 1-20% Quality:
(2-40)% chance to Shock enemiesPlace 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: (160-231)% of base
Effectiveness of Added Damage: (160-231)%
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.Projectiles Pierce all Targets
Beams Chain (4-7) Times
Fires 3 Projectiles
(0-19)% increased Area of Effect
100% of Physical Damage Converted to Fire, Cold or Lightning Damage

Additional Effects From 1-20% Quality:
(1-20)% chance to Freeze, Shock and IgnitePlace 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: 6.00%
Effectiveness of Added Damage: 120%Requires Level 12An arc of lightning reaches from the caster to a targeted enemy and chains to other enemies, but not immediately back. Each time the arc chains, it will also chain a secondary arc to another enemy that the main arc has not already hit, which cannot chain further.Deals (6-198) to (32-1122) Lightning Damage
Chains +(4-7) Times
15% more Damage with Hits and Ailments for each remaining Chain

Additional Effects From 1-20% Quality:
Chains +(0.05-1) TimesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., and Vaal ArcVaal ArcSpell, Chaining, Vaal, Lightning, Duration
Level: (1-20)
Souls Per Use: 25
Can Store 1 Use(s)
Soul Gain Prevention: 2 sec
Cast Time: 0.70 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 220%Requires Level 12A shocking arc of lightning reaches from the caster to a targeted enemy and chains to other enemies. Each time the arc chains from an enemy, it will do so simultaneously to two further enemies, but never to enemies that have already been hit by any of these chains. Also grants a buff making your Arc damage lucky for a short duration.Deals (38-924) to (64-1539) Lightning Damage
100% increased Duration of Lightning Ailments
Base duration is 4.00 seconds
100% chance to Shock enemies
Chains +(5-9) Times
15% more Damage with Hits and Ailments for each remaining Chain
100% increased Effect of Lightning Ailments

Additional Effects From 1-20% Quality:
Chains +(0.05-1) TimesCorruptedPlace 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

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.