Vaal Molten Shell

Vaal Molten ShellVaal, Spell, AoE, Duration, Fire, Physical, Guard
Souls Per Use: 50 (N) /
Can Store 1 Use(s)
Can Store 1 Use(s)
Soul Gain Prevention: 14.000 sec
Cooldown Time: 0.50 secRequires Level 4Applies a buff that adds to your armour, and can take some of the damage from hits for you before being depleted. Each second, the skill deals reflected damage to surrounding enemies based on the damage taken from the buff in that second. When the buff expires or is depleted, the skill deals reflected damage to enemies around you based on the total damage that was taken from the buff.Per 1% Quality:
1% increased Skill Effect DurationBase duration is 9 seconds
(60-1030) additional Armour
80% of Damage from Hits is taken from the Buff before your Life or Energy Shield
Buff can take Damage equal to 60% of your Armour, up to a maximum of 30000
Reflects (100-3000)% of Damage taken from Buff as Fire Damage each second,
or when Buff expires or is depleted
Modifiers to Skill Effect Duration also apply to this Skill's Soul Gain Prevention
CorruptedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.Acquisition
Level: 4Sell Price
1x Scroll FragmentMiscellaneous
Item class: Active Skill Gems
Metadata ID: Metadata/Items/Gems/SkillGemVaalMoltenShell

For the non-Vaal counterpart, see Molten Shell.

Vaal Molten Shell is a vaal spell that creates a shell around the user that grants extra armour and absorbs incoming hits, absorbing more damage with increased armour. Each second or when expiring, the shell deals fire damage around it based on how much damage it has absorbed.

Skill functions and interactions

• Duration: Skill duration modifiers will increase the duration of Vaal Molten Shell.

• Critical Strike Chance: Vaal Molten Shell's chance to crit is decided when the user initially casts the spell. It uses the user's crit chance to determine if all Vaal Molten Shell procs will crit or not crit. This means that the spell will either crit for every proc of the duration or none of them, making a Diamond FlaskDiamond FlaskLasts 4.00 Seconds
  Consumes 20 of 40 Charges on use
  Your Critical Strike Chance is LuckyRequires Level 27Right click to drink. Can only hold charges while in belt. Refills as you kill monsters. the most effective flask to consume before casting the spell.

• Damage reflection: Vaal Molten Shell doesn't trigger on reflected damage.

• Molten Shell: Casting Molten ShellMolten ShellSpell, AoE, Duration, Fire, Physical, Guard
  Radius: 15
  Mana Cost: (8-12)
  Can Store 1 Use(s)
  Cooldown Time: 4.00 secRequires Level 4Applies a buff that adds to your armour, and can take some of the damage from hits for you before being depleted. When the buff expires or is depleted, the skill deals reflected damage to enemies around you based on the total damage that was taken from the buff. Shares a cooldown with other Guard skills.Per 1% Quality:
  1% increased Skill Effect DurationBase duration is 3 seconds
  (50-858) additional Armour
  75% of Damage from Hits is taken from the Buff before your Life or Energy Shield
  Buff can take Damage equal to 20% of your Armour, up to a maximum of 10000
  Reflects (100-3000)% of Damage taken from Buff as Fire Damage when Buff expires or is depleted
  This Skill's Cooldown does not recover during its effectPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. while Vaal Molten Shell is active will terminate the Vaal Molten Shell buff and replace it for the cast Molten Shell. This will happen both ways (when Vaal Molten Shell is cast while Molten Shell is active). This makes it unfavorable to use both skills in conjunction with one another.

Strategy

Unlike its non-Vaal counterpart, Vaal Molten Shell will persist for the full duration, regardless of how many times an explosion is triggered. This unique property offers potentially vastly more utility than Molten Shell at the cost of less availability. Because of this, it is recommended that Vaal Molten Shell be saved for an occasion in which it will offer the greatest benefit, such as during an encounter with a unique monster or even a troublesome rare.

Due to the nature of Vaal Molten Shell, it has synergy with support gems that utilize the potentially frequent explosions, such as stun or life leech; however, the rather steep soul cost of Vaal Molten Shell gates the strength of the gem. In addition, while the armour offered during Vaal Molten Shell's duration is first-rate, it may cause conflicts with Cast when Damage Taken SupportCast when Damage Taken SupportSupport, Spell, Trigger
Icon: !
Can Store 1 Use(s)
Cooldown Time: 0.25 secRequires Level 38Each supported spell skill will track damage you take, and be triggered when the total damage taken reaches a threshold. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills that reserve mana cannot be triggered.Per 1% Quality:
Supported Skills deal 0.5% increased DamageTrigger Supported Spells when you take a total of (528-3272) Damage
Supported Skills deal (-70-6)% more Damage
This Gem can only Support Skill Gems requiring Level (38-70) or lower
You cannot Cast Supported Triggerable Spells directlyThis 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..

Items which deal damage to you will also trigger the explosion:

• Scold's BridleScold's Bridle
  Mind CageQuality: +20%
  Energy Shield: 82Requires Level 65, 138 Int(80-100)% increased Spell Damage
  15% reduced Cast Speed
  +(30-60) to maximum Mana
  Your Skills deal you 400% of Mana Spent on Skill Mana Costs as Physical Damage"The sharper the pain, the sharper the mind.
  A curious paradox."
  - Shavronne of Umbra when using any skill

Gem level progression

Level			Armour	Damage Reflection	Exp.	Total Exp.
1	4	16	60	100%	0	0
2	6	20	71	130%	841	841
3	9	27	89	180%	3,099	3,940
4	12	33	109	250%	7,433	11,373
5	16	41	137	330%	22,895	34,268
6	20	50	170	420%	49,725	83,993
7	24	58	205	530%	95,714	179,707
8	28	67	245	650%	169,595	349,302
9	32	75	290	780%	283,759	633,061
10	36	83	339	920%	453,996	1,087,057
11	40	92	393	1080%	703,128	1,790,185
12	44	100	454	1250%	1,061,223	2,851,408
13	48	109	520	1430%	2,065,870	4,917,278
14	52	117	594	1620%	2,507,110	7,424,388
15	55	123	654	1820%	2,573,731	9,998,119
16	58	130	719	2040%	7,611,351	17,609,470
17	61	136	788	2260%	13,437,908	31,047,378
18	64	142	863	2500%	25,052,147	56,099,525
19	67	148	943	2740%	43,869,436	99,968,961
20	70	155	1030	3000%	242,081,178	342,050,139
21	72	159	1090	3270%	N/A	N/A
22	74	N/A	1154	3550%	N/A	N/A
23	76	N/A	1221	3830%	N/A	N/A
24	78	N/A	1291	4130%	N/A	N/A
25	80	N/A	1365	4440%	N/A	N/A
26	82	N/A	1441	4760%	N/A	N/A
27	84	N/A	1522	5090%	N/A	N/A
28	86	N/A	1606	5430%	N/A	N/A
29	88	N/A	1694	5770%	N/A	N/A
30	90	N/A	1786	6130%	N/A	N/A
31	91	N/A	1834	6500%	N/A	N/A
32	92	N/A	1883	6880%	N/A	N/A
33	93	N/A	1932	7260%	N/A	N/A
34	94	N/A	1983	7660%	N/A	N/A
35	95	N/A	2036	8060%	N/A	N/A
36	96	N/A	2089	8480%	N/A	N/A
37	97	N/A	2144	8900%	N/A	N/A
38	98	N/A	2199	9340%	N/A	N/A
39	99	N/A	2256	9780%	N/A	N/A
40	100	N/A	2315	10230%	N/A	N/A

Item acquisition

Upgrade paths

This item can be acquired through the following upgrade paths or vendor recipes:

Amount	Ingredient	General Notes	Type
9	Volatile PowerVolatile Power9Superior Vaal Gem Quality: +20% CorruptedUnlimited power is apt to corrupt the minds of those who possess it.	random corrupted superior Vaal gem (Q20)	Automatic
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	Automatic
13	The CataclysmThe Cataclysm13Level 21 Spell Gem CorruptedThe mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.	random corrupted level 21 Spell gem	Automatic
3	Gemcutter's PromiseGemcutter's Promise3Superior Gem 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 superior gem (Q20)	Automatic

Version history

Version	Changes
3.7.0	Now has a base duration of 9 seconds at all gem levels (from 5). Now grants 60 additional armour at gem level 1 (from 17), up to 1030 at gem level 20 (from 943) Now creates a buff that can take damage equal to 60% of your armour. Now causes 80% of damage from hits to be taken from the buff before your life or energy shield. Now reflects a portion of the damage taken from the buff as fire damage every second until the buff expires or is depleted. Now reflects 100% of damage taken from the buff as fire damage when the buff expires or is depleted at gem level 1, up to 3000% at gem level 20 (previously stated 1050% at gem level 20). Now has a Vaal Soul generation cooldown of 14 seconds (from 7 seconds). No longer has an added damage effectiveness multiplier or critical strike chance, as reflected damage cannot benefit from added damage, nor can it critically strike. Shares its cooldown with other guard skills (Steelskin and Immortal Call).
3.4.0	Now has a Soul Gain Prevention duration of 7 seconds (up from 5).
2.6.0	Changed the explosion effect. The new one has better performance.
2.4.0	Vaal Molten Shell now causes an explosion when it prevents any physical damage, rather than when it takes any hit.
2.3.2	When switching between regular and Vaal Molten Shell, the shield will now visually destroy and recreate itself. Fixed a bug where Molten Shell buff effect bonuses did not apply to Vaal Molten Shell.
2.3.0	Vaal Molten ShellVaal Molten ShellVaal, Spell, AoE, Duration, Fire, Physical, Guard Souls Per Use: 50 (N) / Can Store 1 Use(s) Can Store 1 Use(s) Soul Gain Prevention: 14.000 sec Cooldown Time: 0.50 secRequires Level 4Applies a buff that adds to your armour, and can take some of the damage from hits for you before being depleted. Each second, the skill deals reflected damage to surrounding enemies based on the damage taken from the buff in that second. When the buff expires or is depleted, the skill deals reflected damage to enemies around you based on the total damage that was taken from the buff.Per 1% Quality: 1% increased Skill Effect DurationBase duration is 9 seconds (60-1030) additional Armour 80% of Damage from Hits is taken from the Buff before your Life or Energy Shield Buff can take Damage equal to 60% of your Armour, up to a maximum of 30000 Reflects (100-3000)% of Damage taken from Buff as Fire Damage each second, or when Buff expires or is depleted Modifiers to Skill Effect Duration also apply to this Skill's Soul Gain Prevention CorruptedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.'s duration has been reduced from 10 seconds to 5 seconds at all gem levels. Its damage has been reduced at high levels. It does the same damage at gem level 1, up to half the damage it previously did at gem level 20.
2.2.0	Cast time reduced from 1 sec to 500 ms.
2.1.0	Fixed a bug where Molten ShellMolten ShellSpell, AoE, Duration, Fire, Physical, Guard Radius: 15 Mana Cost: (8-12) Can Store 1 Use(s) Cooldown Time: 4.00 secRequires Level 4Applies a buff that adds to your armour, and can take some of the damage from hits for you before being depleted. When the buff expires or is depleted, the skill deals reflected damage to enemies around you based on the total damage that was taken from the buff. Shares a cooldown with other Guard skills.Per 1% Quality: 1% increased Skill Effect DurationBase duration is 3 seconds (50-858) additional Armour 75% of Damage from Hits is taken from the Buff before your Life or Energy Shield Buff can take Damage equal to 20% of your Armour, up to a maximum of 10000 Reflects (100-3000)% of Damage taken from Buff as Fire Damage when Buff expires or is depleted This Skill's Cooldown does not recover during its effectPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. could be applied multiple times via Spell Echo.
1.1.0d	Vaal Skill soul counts were initially balanced for Merciless difficulty, where there are more monsters. We want them to be easier to use in Normal and Cruel difficulty. We have halved the number of souls required for each skill. In Cruel difficulty, skills require 50% more souls to uses. In Merciless difficulty, they require 100% more (which is the same as before the patch).
1.1.0b	Fixed a bug with damage feedback on Vaal Molten ShellVaal Molten ShellVaal, Spell, AoE, Duration, Fire, Physical, Guard Souls Per Use: 50 (N) / Can Store 1 Use(s) Can Store 1 Use(s) Soul Gain Prevention: 14.000 sec Cooldown Time: 0.50 secRequires Level 4Applies a buff that adds to your armour, and can take some of the damage from hits for you before being depleted. Each second, the skill deals reflected damage to surrounding enemies based on the damage taken from the buff in that second. When the buff expires or is depleted, the skill deals reflected damage to enemies around you based on the total damage that was taken from the buff.Per 1% Quality: 1% increased Skill Effect DurationBase duration is 9 seconds (60-1030) additional Armour 80% of Damage from Hits is taken from the Buff before your Life or Energy Shield Buff can take Damage equal to 60% of your Armour, up to a maximum of 30000 Reflects (100-3000)% of Damage taken from Buff as Fire Damage each second, or when Buff expires or is depleted Modifiers to Skill Effect Duration also apply to this Skill's Soul Gain Prevention CorruptedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket..
1.1.0	Introduced to the game.