Spectral Helix

Spectral HelixAttack, Projectile
Level: (1-20)
Cost: (6-9) Mana
Attack Speed: 110% of base
Attack Damage: (120-180)% of base
Effectiveness of Added Damage: (120-180)%Requires Level 12Throws a spectral copy of your melee weapon. It spins around while flying in a large spiral, damaging enemies in its path, and bouncing if it collides with walls.Bounces up to 3 times
Modifiers to number of Projectiles instead apply to the number of Bounces
Spirals through 4.25 rotations

Additional Effects From 1-20% Quality:
Projectiles that have Pierced deal (0.5-10)% more DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Acquisition
Drop level: 12Metadata
Item class: Skill Gem
Metadata ID: Metadata/Items/Gems/SkillGemSpectralHelix

Spectral Helix is an attack skill. It throws the current melee weapon, making it spin in a large spiral, damaging enemies in its path. If the weapon collides with walls, it bounces a number of times.

Skill Functions and Interactions

• Projectile speed has no effect on the projectile's lifetime. Decreasing Spectral Helix's projectile speed will increase the total number of projectiles you can have up at a time at the cost of reducing how fast it can cover its trajectory.
• Sniper's Mark - Projectiles that hit the marked enemy have their behavior overridden by the mark, they no longer spiral.
• Fork/Chain/Pierce - As the projectile will inherently pierce enemies, Fork and Chain will have no effect.
• Additional Projectiles - Sources of additional projectiles, such as Lesser Multiple Projectiles SupportLesser Multiple Projectiles SupportSupport, Projectile
  Icon: l
  Level: (1-20)
  Cost & Reservation Multiplier: 130%Requires Level 8Supports projectile skills.Supported Skills deal (15-6)% less Projectile Damage
  Supported Skills fire 2 additional Projectiles
  
  Additional Effects From 1-20% Quality:
  Supported Skills deal (0.5-10)% increased Projectile 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 Skill Gem you wish to augment. Right click to remove from a socket. or the Deadeye passive Endless Munitions, do not increase the number of projectiles thrown. Rather, they add to the number of times a projectile will bounce off surfaces.
• The Projectiles that have Pierced deal #% more Damage quality stat only scales hit damage, not damage over time applied by the projectile, such as damaging ailments or Decay.

Gem level progression

Level				Mana Cost	Damage Effectiveness	Attack Damage	Exp.	Total Exp.
1	12	21	14	6	120%	120%	0	0
2	15	25	17	6	123.2%	123.2%	15249	15249
3	19	30	21	6	126.3%	126.3%	41517	56766
4	23	35	24	6	129.5%	129.5%	81983	138749
5	27	41	28	7	132.6%	132.6%	147968	286717
6	31	46	32	7	135.8%	135.8%	250557	537274
7	35	51	36	7	138.9%	138.9%	405086	942360
8	38	55	38	7	142.1%	142.1%	447718	1390078
9	41	59	41	7	145.3%	145.3%	615318	2005396
10	44	63	44	8	148.4%	148.4%	834639	2840035
11	47	67	47	8	151.6%	151.6%	1570760	4410795
12	50	71	49	8	154.7%	154.7%	1633987	6044782
13	53	75	52	8	157.9%	157.9%	2151030	8195812
14	56	79	55	8	161.1%	161.1%	2812189	11008001
15	59	83	58	8	164.2%	164.2%	5099360	16107361
16	62	87	60	9	167.4%	167.4%	9400731	25508092
17	64	90	62	9	170.5%	170.5%	15273366	40781458
18	66	92	64	9	173.7%	173.7%	26286582	67068040
19	68	95	66	9	176.8%	176.8%	62890590	129958630
20	70	98	68	9	180%	180%	212046017	342004647
21	72	100	70	9	183.2%	183.2%	—	—
22	74	—	—	9	186.3%	186.3%	—	—
23	76	—	—	9	189.5%	189.5%	—	—
24	78	—	—	10	192.6%	192.6%	—	—
25	80	—	—	10	195.8%	195.8%	—	—
26	82	—	—	10	198.9%	198.9%	—	—
27	84	—	—	10	202.1%	202.1%	—	—
28	86	—	—	10	205.3%	205.3%	—	—
29	88	—	—	10	208.4%	208.4%	—	—
30	90	—	—	10	211.6%	211.6%	—	—
31	91	—	—	10	213.2%	213.2%	—	—
32	92	—	—	10	214.7%	214.7%	—	—
33	93	—	—	10	216.3%	216.3%	—	—
34	94	—	—	11	217.9%	217.9%	—	—
35	95	—	—	11	219.5%	219.5%	—	—
36	96	—	—	11	221.1%	221.1%	—	—
37	97	—	—	11	222.6%	222.6%	—	—
38	98	—	—	11	224.2%	224.2%	—	—
39	99	—	—	11	225.8%	225.8%	—	—
40	100	—	—	11	227.4%	227.4%	—	—

Item acquisition

Spectral Helix can drop anywhere.

Recipes

Spectral Helix can be created from the following recipes:

Amount	Part	Description	Meta
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	A
3	Gemcutter's PromiseGemcutter's Promise3Gem 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 gem with 20% quality	A
1	Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.	Random gem with 1–20% quality	A
1	The VoidThe Void1Reach into the Void and claim your prize.	Random divination card set exchange	A

Quest reward

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

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
Quest ↓
The Siren's Cadence Act 1

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 Siren's Cadence Act 1 Nessa
A Fixture of Fate Act 3 Siosa
Fallen from Grace Act 6 Lilly Roth

Related helmet enchantments

The following helmet enchantments affect Spectral Helix.

Note that helmet enchantments are no longer obtainable since version 3.23.0 and can only be obtained in permanent leagues as already enchanted items from before this patch.

Name		Labyrinth	Stats	Spawn Weighting
Enchantment Spectral Helix Damage 1	66	Merciless Labyrinth	25% increased Spectral Helix Damage	helmet 100
Enchantment Spectral Helix Damage 2	75	Eternal Labyrinth	40% increased Spectral Helix Damage	helmet 100
Enchantment Spectral Helix Extra Rotation	75	Eternal Labyrinth	Spectral Helix Projectile spirals through +1 rotations	helmet 100
Enchantment Spectral Helix Projectile Speed 1	66	Merciless Labyrinth	20% increased Spectral Helix Projectile Speed	helmet 100
Enchantment Spectral Helix Projectile Speed 2	75	Eternal Labyrinth	30% increased Spectral Helix Projectile Speed	helmet 100

Alternate skill effects

Spectral Helix has the following alternate skill effects:

Item	Description
Nightfall Spectral Helix EffectNightfall Spectral Helix EffectSkill Gem EffectYour Spectral Helix becomes a Nightfall Effect.	Your Spectral Helix becomes a Nightfall Effect.

Version history

Version	Changes
3.25.0	Now has a Mana cost of 6 at gem level 1 (previously 7), scaling up to 9 at gem level 20 (unchanged). Now has 120% Effectiveness of Base and Added Damage at gem level 1 (previously 100%), scaling up to 180% at gem level 20 (previously 150%).
3.23.0	Quality now causes Projectiles that have Pierced to deal 0-10% more Damage, instead of providing 0-10% increased Attack Speed.
3.20.0	Spectral Helix now has 100% Effectiveness of Added Damage at gem level 1 (previously 160%), up to 150% at gem level 20 (previously 250%).
3.15.0	Spectral Helix has been added to the game.