Vaal Caustic Arrow

For the non-Vaal counterpart, see Caustic Arrow.

Vaal Caustic Arrow is a Vaal bow attack that fires an arrow dealing chaos damage and spreading caustic ground along its entire flight path.

Skill functions and interactions

• An enemy can only be affected by one caustic ground effect but if multiple are applied, the strongest effect will be the one that applies to the enemy.

Gem level progression

Level			Damage Effectiveness	Attack Damage	Exp.	Total Exp.
1	1	0	280%	280%	0	0
2	2	0	286%	286.3%	70	70
3	4	16	293%	292.6%	308	378
4	7	22	299%	298.9%	1554	1932
5	11	31	305%	305.3%	6667	8599
6	16	41	312%	311.6%	26047	34646
7	20	50	318%	317.9%	49725	84371
8	24	58	324%	324.2%	95714	180085
9	28	67	331%	330.5%	169595	349680
10	32	75	337%	336.8%	283759	633439
11	36	83	343%	343.2%	453996	1087435
12	40	92	349%	349.5%	703128	1790563
13	44	100	356%	355.8%	1061223	2851786
14	48	109	362%	362.1%	2065870	4917656
15	52	117	368%	368.4%	2507110	7424766
16	56	125	375%	374.7%	5798936	13223702
17	60	134	381%	381.1%	15083919	28307621
18	64	142	387%	387.4%	27792735	56100356
19	67	148	394%	393.7%	43869739	99970095
20	70	155	400%	400%	242081556	342051651
21	72	159	406%	406.3%	N/A	N/A
22	74	N/A	413%	412.6%	N/A	N/A
23	76	N/A	419%	418.9%	N/A	N/A
24	78	N/A	425%	425.3%	N/A	N/A
25	80	N/A	432%	431.6%	N/A	N/A
26	82	N/A	438%	437.9%	N/A	N/A
27	84	N/A	444%	444.2%	N/A	N/A
28	86	N/A	451%	450.5%	N/A	N/A
29	88	N/A	457%	456.8%	N/A	N/A
30	90	N/A	463%	463.2%	N/A	N/A
31	91	N/A	466%	466.3%	N/A	N/A
32	92	N/A	469%	469.5%	N/A	N/A
33	93	N/A	473%	472.6%	N/A	N/A
34	94	N/A	476%	475.8%	N/A	N/A
35	95	N/A	479%	478.9%	N/A	N/A
36	96	N/A	482%	482.1%	N/A	N/A
37	97	N/A	485%	485.3%	N/A	N/A
38	98	N/A	488%	488.4%	N/A	N/A
39	99	N/A	492%	491.6%	N/A	N/A
40	100	N/A	495%	494.7%	N/A	N/A

Gem quality

Type	Additional Effects per 1-20% Quality	Weight
Superior	+(0.01-0.2) metres to radius	1

Item acquisition

Vaal Caustic Arrow has restrictions on where or how it can drop. Vaal Caustic Arrow can drop from the Vaal Vessels found in Vaal side areas, or by corrupting Caustic ArrowCaustic ArrowAttack, Projectile, AoE, Duration, Chaos, Bow
Level: (1-20)
Cost: (6-10) Mana
Attack Damage: (55-64)% of base
Effectiveness of Added Damage: (55-64)%
Projectile Speed: 3260
AoE Radius: 20Fires an arrow which deals chaos damage in an area on impact, and spreads caustic ground. Enemies standing on the caustic ground take chaos damage over time.Deals (8.8-1927.1) Base Chaos Damage per second
Base duration is 2.00 seconds
Modifiers to Projectile Damage apply to this Skill's Damage Over Time effect
+(0-0.6) metres to radius
60% of Physical Damage Converted to Chaos Damage

Additional Effects From 1-20% Quality:
+(0.01-0.2) metres to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket..

Recipes

Vaal Caustic Arrow can be created from the following recipes:

Amount	Part	Description	Meta
9	Volatile PowerVolatile Power9Vaal Gem Quality: +20% CorruptedUnlimited power is apt to corrupt the minds of those who possess it.	Random corrupted Vaal gem with 20% quality	A
1	The VoidThe Void1Reach into the Void and claim your prize.	Random divination card set exchange	A

Threshold jewels

The following threshold jewels augment Vaal Caustic Arrow:

Note that the jewels may be drop disabled and can only be found in permanent leagues as legacy items.

Item	Limit	Radius	Stats	Drop Enabled

Related helmet enchantments

The following helmet enchantments affect Vaal Caustic Arrow.

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 Caustic Arrow Damage 1	66	Merciless Labyrinth	25% increased Caustic Arrow Damage	helmet 75
Enchantment Caustic Arrow Damage 2	75	Eternal Labyrinth	40% increased Caustic Arrow Damage	helmet 75
Enchantment Caustic Arrow Duration 1	66	Merciless Labyrinth	20% increased Caustic Arrow Duration	helmet 75
Enchantment Caustic Arrow Duration 2	75	Eternal Labyrinth	30% increased Caustic Arrow Duration	helmet 75
Enchantment Caustic Arrow Area Of Effect 1	66	Merciless Labyrinth	16% increased Caustic Arrow Area of Effect	helmet 75
Enchantment Caustic Arrow Area Of Effect 2	75	Eternal Labyrinth	24% increased Caustic Arrow Area of Effect	helmet 75
Enchantment Caustic Arrow Wither On Hit 1	66	Merciless Labyrinth	Caustic Arrow has 14% chance to inflict Withered on Hit for 2 seconds base Duration	helmet 75
Enchantment Caustic Arrow Wither On Hit 2	75	Eternal Labyrinth	Caustic Arrow has 20% chance to inflict Withered on Hit for 2 seconds base Duration	helmet 75

Alternate skill effects

Vaal Caustic Arrow has the following alternate skill effects:

Item	Effect(s)
Celestial Caustic Arrow EffectCelestial Caustic Arrow EffectSkill Gem EffectYour Caustic Arrow becomes a Celestial Effect.	Your Caustic Arrow becomes a Celestial Effect.
Oblivion Caustic Arrow EffectOblivion Caustic Arrow EffectSkill Gem EffectYour Caustic Arrow becomes an Oblivion Effect.	Your Caustic Arrow becomes an Oblivion Effect.
Tentacle Caustic Arrow EffectTentacle Caustic Arrow EffectSkill Gem EffectYour Caustic Arrow becomes an area of ethereal purple tentacles.	Your Caustic Arrow becomes an area of ethereal purple tentacles.

Version history

Version	Changes
3.20.0	Introduced to the game.