Efficacy Support

Efficacy SupportSupport, Duration
Icon: a
Level: (1-20)
Cost & Reservation Multiplier: 140%Requires Level 8Supports any skill that deals damage or has a duration.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Damage over TimeSupported Skills have 0.5% increased Skill Effect DurationSupported Skills have 0.5% reduced Mana CostSupported Skills deal (15-24)% more Damage over Time
Supported Skills have (15-24)% increased Skill Effect DurationThis 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: 8Vendor Prices

Normal

1x Orb of Transmutation

Vendor Offer
1x Scroll FragmentMetadata
Item class: Support Skill Gems
Metadata ID: Metadata/Items/Gems/SupportGemEfficacy

Efficacy Support is support gem that grants more spell damage, more damage over time, and increased skill effect duration.

Skill functions and interactions

The 3 modifiers Supported Skills deal #% more Spell Damage, Supported Skills deal #% more Damage over Time and Supported Skills have #% increased Skill Effect Duration are independent from each other so that 1 skill may benefit from only 1 modifier, but another skill may benefits from all 3 modifiers.

• Supported Skills have #% increased Skill Effect Duration This stack additively with Increased Duration SupportIncreased Duration SupportSupport, Duration
  Icon: D
  Level: (1-20)
  Cost & Reservation Multiplier: 140%Requires Level 31Supports any skill with a duration.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Skill Effect DurationSupported Skills have 1% reduced Mana Cost
  Supported Skills have 0.5% reduced Skill Effect DurationSupported Skills have 1% increased Duration of Ailments on EnemiesSupported Skills have (45-64)% increased Skill Effect DurationThis 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. and multiply with Less Duration SupportLess Duration SupportSupport, Duration
  Icon: d
  Level: (1-20)
  Cost & Reservation Multiplier: 120%Requires Level 31Supports any skill that has a duration.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% less Skill Effect DurationSupported Skills have 0.5% increased Attack and Cast SpeedBleeding inflicted by Supported Skills deals Damage 0.5% fasterSupported Skills have (40-49)% less Skill Effect Duration
  Supported Skills deal (10-19)% 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.'s mod.

• Supported Skills deal #% more Spell Damage This mod multiplicative with other more damage multiplier. Since the stat_id behind this mod is support_efficacy_spell_damage_+%_final, while the other more damage, for example from Less Duration SupportLess Duration SupportSupport, Duration
  Icon: d
  Level: (1-20)
  Cost & Reservation Multiplier: 120%Requires Level 31Supports any skill that has a duration.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% less Skill Effect DurationSupported Skills have 0.5% increased Attack and Cast SpeedBleeding inflicted by Supported Skills deals Damage 0.5% fasterSupported Skills have (40-49)% less Skill Effect Duration
  Supported Skills deal (10-19)% 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., is support_reduced_duration_damage_+%_final. Read Stat#Interaction for details.

Gem level progression

Level					Cost and Reservation Multiplier	Critical Strike Chance	Mana Cost	Damage Effectiveness	Stored Uses	Cooldown	Vaal souls	Stored Uses	Soul Prevention Time	Attack Damage	Base duration	Attack Speed	More Spell Damage	More Damage over Time	Incr. Duration	Exp.	Total Exp.
1	8	0	0	52	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	10%	15%	10%	0	0
2	34	0	0	57	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	11%	15%	10%	285815	285815
3	36	0	0	60	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	11%	16%	10%	252595	538410
4	38	0	0	63	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	12%	16%	11%	314394	852804
5	40	0	0	66	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	12%	17%	11%	388734	1241538
6	42	0	0	69	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	13%	17%	11%	477437	1718975
7	44	0	0	72	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	13%	18%	12%	583786	2302761
8	46	0	0	75	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	14%	18%	12%	710359	3013120
9	48	0	0	78	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	14%	19%	12%	1355511	4368631
10	50	0	0	81	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	15%	19%	13%	1138877	5507508
11	52	0	0	84	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	15%	20%	13%	1368233	6875741
12	54	0	0	87	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	16%	20%	13%	1638338	8514079
13	56	0	0	90	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	16%	21%	14%	1956648	10470727
14	58	0	0	93	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	17%	21%	14%	3655184	14125911
15	60	0	0	96	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	17%	22%	14%	3017327	17143238
16	62	0	0	99	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	18%	22%	15%	7720126	24863364
17	64	0	0	102	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	18%	23%	15%	15058455	39921819
18	66	0	0	105	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	19%	23%	15%	25964218	65886037
19	68	0	0	108	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	19%	24%	16%	62460771	128346808
20	70	0	0	111	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	20%	24%	16%	211508743	339855551
21	72	0	0	114	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	20%	25%	16%	-339855551	0
22	74	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	21%	25%	17%	0	0
23	76	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	21%	26%	17%	0	0
24	78	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	22%	26%	17%	0	0
25	80	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	22%	27%	18%	0	0
26	82	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	23%	27%	18%	0	0
27	84	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	23%	28%	18%	0	0
28	86	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	24%	28%	19%	0	0
29	88	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	24%	29%	19%	0	0
30	90	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	25%	29%	19%	0	0
31	91	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	25%	29%	19%	0	0
32	92	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	25%	30%	20%	0	0
33	93	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	25%	30%	20%	0	0
34	94	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	26%	30%	20%	0	0
35	95	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	26%	30%	20%	0	0
36	96	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	26%	31%	20%	0	0
37	97	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	26%	31%	20%	0	0
38	98	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	27%	31%	21%	0	0
39	99	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	27%	31%	21%	0	0
40	100	0	0	0	0%	0%	0	0%	0	0.00 sec	0	0	0 sec	0%	0.00 sec	0%	27%	32%	21%	0	0

Related modifiers

The following modifiers are related to Efficacy Support: No results found

Related unique items

The following unique items are related to Efficacy Support:

Item	Base Item		Stats

Version history

Version	Changes
3.15.0	Now has a 140% Cost and Reservation Multiplier (previously 130%). No longer has “Supported Skills deal 10-20% more Spell Damage”. Supported Skills now have 15-24% increased Duration (previously 10-16%).
3.13.0	Now requires level 8 at gem level 1 (from 31). Now causes supported skills to deal 10% more damage over time at gem level 1 (from 15%), up to 24% at gem level 20 (no change). Efficacy Support is now offered to the Witch for completing The Caged Brute, and can be purchased from Nessa by the Templar, Shadow and Scion.
3.12.0	Now has alternative gem quality.
3.0.2	Efficacy Support now correctly supports Damage over Time effects.
3.0.0	Introduced to the game.

References

ru:Эффективность