Magma BarrierBuff, Attack, Persistent, AoE, Melee, Trigger, Fire, Duration Tier: 4 Level: (1-40) Cost: 30 Spirit Attack Damage: (120-2172)% of baseWhen you raise your Shield it is infused with magma for a short time. Blocking during this time will spray magma at the attacker and grant you an Endurance Charge.Raising your shield infuses it with magma for 0.5 seconds Cannot perform a magma-infused block for 0.75 seconds after magma dissipates Gain Endurance Charge on Block
Magma Spray Critical Hit Chance:5.00% Attack Damage:(120-490)% of base (2-4) to (3-6) Added Fire Damage per 15 Armour on Shield (4-234) to (7-351) Base Off Hand Fire Damage
Additional Effects From 1-20% Quality: Raising your shield infuses it with magma for (0-0.2) secondsPlace into a Skill Gem socket to gain this skill. Sockets are found in the Skills menu tab.
Acquisition Drop restricted It can be obtained by engraving an Uncut Spirit Gem.Metadata Item class: Skill Gem Metadata ID: Metadata/Items/Gems/SkillGemMagmaBarrier
Magma Barrier is an attackskill that infuses your shield with magma. A magma-infused shield releases a spray of magma when struck, damaging enemies. Magma Barrier requires an equipped shield.
Despite it being an attack skill, the attack damage % used by Magma Spray is derived explicitly from the base off hand fire damage inherent to the gem itself. The amount of damage listed on a weapon in the main hand will not contribute to the Magma Spray damage. Other mods such as X% increased elemental damage with Attacks however will affect Magma Spray damage.
Focusing on the Armour value on your shield is one of the methods for scaling Magma Spray damage.
Passive tree nodes that contain the text X% increased Defences from Equipped Shield such as Towering Shield, Core of the Guardian, Spiked Shield, and Flashy Deflection do not impact Magma Spray damage. Instead, they impact the final Armour value added to the player rather than the implicit Armour value of the shield itself.
Using Resonating Shield counts as raising your Shield for the purposes of activating Magma Barrier, infusing your shield with magma during the first 0.5 seconds of the animation. Conversely using Shield Charge does not count as raising your Shield.[Likely due to a bugThis bug may already be documented in the POE2 Early Access Bug Report Forum.]
Blocking with Magma Barrier during the first 0.5 seconds of its activation will not place Magma Barrier on its internal cooldown, allowing it to be used in quick succession with each successful block that is within the allotted window.[Likely due to a bugThis bug may already be documented in the POE2 Early Access Bug Report Forum.]
Gem level progression
Level
Attack Damage
Off Hand Fire Damage
Added Fire Damage
1
1
1
120%
4 to 7
2 to 3
2
3
9
132%
6 to 9
2 to 3
3
6
16
146%
8 to 11
2 to 3
4
10
25
160%
10 to 15
2 to 3
5
14
34
174%
12 to 19
2 to 3
6
18
43
189%
15 to 23
2 to 4
7
22
52
204%
19 to 29
2 to 4
8
26
61
218%
24 to 35
2 to 4
9
31
72
232%
29 to 43
2 to 4
10
36
83
246%
35 to 53
2 to 4
11
41
95
262%
43 to 64
3 to 5
12
46
106
280%
51 to 77
3 to 5
13
52
119
299%
62 to 93
3 to 5
14
58
133
319%
75 to 113
3 to 5
15
64
146
342%
91 to 136
3 to 5
16
66
151
367%
110 to 164
4 to 6
17
72
164
393%
132 to 198
4 to 6
18
78
178
423%
160 to 240
4 to 6
19
84
191
455%
193 to 290
4 to 6
20
90
205
490%
234 to 351
4 to 6
21
—
—
528%
284 to 426
5 to 7
22
—
—
569%
345 to 518
5 to 7
23
—
—
613%
420 to 630
5 to 7
24
—
—
660%
512 to 768
5 to 7
25
—
—
711%
626 to 939
5 to 7
26
—
—
766%
766 to 1149
6 to 8
27
—
—
825%
940 to 1411
6 to 8
28
—
—
889%
1157 to 1735
6 to 8
29
—
—
958%
1426 to 2139
6 to 8
30
—
—
1032%
1763 to 2644
6 to 8
31
—
—
1111%
2185 to 3277
7 to 9
32
—
—
1197%
2715 to 4072
7 to 9
33
—
—
1290%
3382 to 5073
7 to 9
34
—
—
1389%
4226 to 6339
7 to 9
35
—
—
1497%
5294 to 7942
7 to 9
36
—
—
1612%
6652 to 9979
8 to 10
37
—
—
1737%
8383 to 12575
8 to 10
38
—
—
1871%
10596 to 15894
8 to 10
39
—
—
2016%
13432 to 20149
8 to 10
40
—
—
2172%
17080 to 25620
8 to 10
Recommended support gems
The following support gems are recommendations by GGG as listed in-game, and do not necessarily reflect optimal combinations or the views of the wiki.
Gem tier
Support gems
I
Fire InfusionFire InfusionAttack, Fire Tier: 1 Level: 1Supports Attacks, causing them to Gain Fire Damage but deal less Cold and Lightning DamageSupported Attacks Gain 25% of Damage as extra Fire Damage Supported Attacks deal 50% less Cold and Lightning DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Magnified EffectMagnified EffectAoE Tier: 1 Level: 1 Cost & Reservation Multiplier: 120%Supports any skill with an area of effect, making it larger.Supported Skills have 40% more area of EffectPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
II
Close CombatClose CombatAttack Tier: 2 Level: 1 Cost & Reservation Multiplier: 140%Supports Attacks, causing them to deal more damage to enemies based on how close they are to you.Supported Skills deal 25% more Attack Damage to enemies within 1 metre of you, scaling down to no bonus at 3.5 metres or furtherPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Exploit WeaknessExploit WeaknessPayoff Tier: 2 Level: 1 Cost & Reservation Multiplier: 130%Supports any skill that Hits enemies, causing them to deal more Damage against enemies with Broken Armour but preventing them from Breaking Armour themselves. Cannot support skills that Consume Broken Armour.Supported Skills cannot Break Armour Supported Skills Consume Enemy Fully Broken Armour to deal 50% more DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
III
Elemental FocusElemental FocusTier: 3 Level: 1Supports any skill that Hits enemies, causing it to deal more Elemental Damage but be unable to inflict Elemental Ailments.Supported Skills deal 25% more Elemental Damage Supported Skills cannot inflict Elemental AilmentsPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
ImmolateImmolateFire, Payoff Tier: 3 Level: 1Supports Attacks, granting them extra Fire damage against Ignited enemies but making them unable to Ignite enemies themselves.Supported Skills cannot Ignite Supported Attacks Gain 30% of Damage as extra Fire Damage against Ignited enemiesPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Item acquisition
Magma Barrier has restrictions on where or how it can drop.