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FirestormSpell, AoE, Duration, Fire
Level: (1-20)
Cost: (13-25) Mana
Soul Gain Prevention: 0 sec
Cast Time: 0.75 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 55%
Requires Level 28Flaming bolts rain down over the targeted area. They explode when landing, dealing damage to nearby enemies.Per 1% Quality:1Superior2Anomalous3Divergent1% increased DamageFirst Impact deals 3% more Damage with Hits and Ailments
Base duration is 0.003 seconds
1% reduced Enemy Stun Threshold
Base duration is 1.4 seconds
Deals (22-207) to (33-311) Fire Damage
One impact every 0.2 seconds
First Impact deals 325% more Damage with Hits and Ailments
First Impact has 100% more Area of Effect
Maximum 3 Firestorms at a time
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Firestorm skill icon.pngFirestorm inventory icon.png
Acquisition
Area level: 28
Vendor Prices
Normal1x Orb of Chance
Vendor Offer
1x Scroll Fragment
Metadata
Item class: Active Skill Gems
Metadata ID: Metadata/Items/Gems/SkillGemFirestorm

Firestorm skill screenshot.jpg

Firestorm is a spell that rains numerous fiery bolts in an area, each bolt dealing area of effect fire damage.

Skill functions and interactions

Area of Effect: Increased AoE will increase both the area in which the fireballs randomly fall and also the radius of the individual fireball damage. Full spell damage is done at any point within the AoE of a fireball, however due to the fact that enemies take up an area and not simply a point, less spell damage is dealt to any given enemy as area increases. For this reason increasing the AoE of Firestorm paradoxically decreases the average damage dealt to a single target.

Duration: Increasing duration with either supports or passives will increase the total number of fireballs that fall before the spell ends.

Damage per Second: Due to the complexity of estimating the actual DPS of this skill including all possible factors, the in-game tooltip shows only the average damage per hit of one fireball, with actual DPS of the skill being considerably higher. The closest currently available estimate can be obtained by using the damage calculator.

Gem level progression

LevelRequired LevelRequired IntelligenceMana
Cost
Fire
Damage
Exp.Total Exp.
128671322 to 3300
231731426 to 39199345199345
334791531 to 47285815485160
437851637 to 56401344886504
540921644 to 665543791440883
642961749 to 744774371918320
7441001855 to 835837862502106
8461041861 to 927103593212465
9481091968 to 10213555114567976
10501131976 to 11411388775706853
11521172084 to 12613682337075086
12541212093 to 14016383388713424
135612521104 to 155195664810670072
145813021115 to 172365518414325256
156013422127 to 190301732717342583
166213822140 to 210775999525102578
176414223155 to 2321513819340240771
186614624171 to 2562608382566324596
196815124188 to 28262620247128944843
207015525207 to 311211708088340652931
217215925228 to 343N/AN/A
2274N/A26251 to 377N/AN/A
2376N/A26276 to 415N/AN/A
2478N/A27304 to 456N/AN/A
2580N/A27334 to 501N/AN/A
2682N/A28367 to 550N/AN/A
2784N/A28403 to 604N/AN/A
2886N/A29442 to 663N/AN/A
2988N/A30485 to 727N/AN/A
3090N/A30531 to 797N/AN/A
3191N/A30556 to 834N/AN/A
3292N/A31582 to 873N/AN/A
3393N/A31609 to 914N/AN/A
3494N/A31638 to 956N/AN/A
3595N/A31667 to 1001N/AN/A
3696N/A32698 to 1047N/AN/A
3797N/A32731 to 1096N/AN/A
3898N/A32764 to 1147N/AN/A
3999N/A33800 to 1199N/AN/A
40100N/A33836 to 1255N/AN/A

Item acquisition
Questionmark.png

Upgrade paths

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

AmountIngredientGeneral
Notes
Type
8Dying AnguishDying Anguish8Level 19 Gem
Alternative Quality: +19%
Moribund, he gazed upon the journey taken as blood trickled down his chin. His eye closed on the city ahead that he would never call home.
random level 19 gem with 19% alternative qualityAutomatic
1Gemcutter's IncubatorGemcutter's IncubatorAdds an incubated Quality Gem item to an equippable item
Item drops after killing # monsters
Quality GemRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
random superior gemAutomatic
6The 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 gemAutomatic
13The CataclysmThe Cataclysm13Level 21 Spell Gem
Corrupted
The 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 gemAutomatic
3Gemcutter'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 with 20% qualityAutomatic
1The VoidThe Void1Reach into the Void and claim your prize.random divination card set exchangeAutomatic

Quest reward

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

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
Sever the Right Hand
Act 3

Vendor reward

This item can be bought at the listed NPC vendors, after completing the following quests:

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
A Fixture of Fate
Act 3
Siosa
Sever the Right Hand
Act 3
Clarissa
Fallen from Grace
Act 6
Lilly Roth

Related helmet enchantments

The following helmet enchantments affect Firestorm.

NameFor generated item/monster modifiers the minimum item/monster level respectively. Some generation types may not require this condition to be met, however item level restrictions may be raised to 80% of this value.StatsSpawn Weighting
Enchantment Firestorm Damage 16625% increased Firestorm Damagehelmet 100
default 0
Enchantment Firestorm Damage 27540% increased Firestorm Damagehelmet 100
default 0
Enchantment Firestorm Duration 16620% increased Firestorm Durationhelmet 100
default 0
Enchantment Firestorm Duration 27530% increased Firestorm Durationhelmet 100
default 0
Enchantment Firestorm Explosion Area Of Effect 16616% increased Firestorm explosion Area of Effecthelmet 100
default 0
Enchantment Firestorm Explosion Area Of Effect 27524% increased Firestorm explosion Area of Effecthelmet 100
default 0

Alternate skill effects

Firestorm has the following alternate skill effects:

ItemEffect(s)
Siege Firestorm EffectSiege Firestorm EffectSkill Gem EffectYour Firestorm becomes a flaming siege assaultYour Firestorm becomes a flaming siege assault
Stygian Firestorm EffectStygian Firestorm EffectSkill Gem EffectYour Firestorm becomes a Stygian FirestormYour Firestorm becomes a Stygian Firestorm

Version history

Version Changes
3.13.0
  • Firestorm has a new skillbar icon.
  • Now grants more damage with hits and ailments on the first impact (previously it granted more area damage, which does not apply to ailments).
  • The first impact now deals 250% more damage (from 150%) with hits and ailments.
3.12.0
Firestorm now calls down a large meteor that impacts the targeted location, followed by a series of smaller impacts at set intervals over the storm's duration. The base power of the spell has been significantly raised, so you are now limited to three Firestorms at any given time (any new storms created will replace the oldest).
  • Now requires level 28 at gem level 1 (from 12). Please be aware that existing low level characters with Firestorm socketed may have that gear slot disabled until the Firestorm gem is removed.
  • Now has a mana cost of 13 at gem level 1, up to 25 at gem level 20.
  • Now has an added damage effectiveness of 50%.
  • Now deals 22 to 33 fire damage at gem level 1, up to 207 to 311 fire damage at gem level 20.
  • Now has a base duration of 1.4 seconds with one impact every 0.2 seconds.
  • The first impact now has 100% more area of effect and deals 150% more damage.
  • Now has alternative quality:
Anomalous: First Impact deals 3% more damage and Base duration is -0.003 seconds (per 1% quality)
Divergent 1% reduced Enemy Stun Threshold (per 1% quality)[1]
  • Now offered to the Witch and Templar for completing Sever the Right Hand, and can be purchased from Clarissa by the Shadow and Scion.
3.11.0
  • The visual effects have been improved.
  • Now deals 7 to 11 Fire Damage at gem level 1 (from 4 to 11).
  • Now has an added Damage effectiveness of 45% (from 30%).
3.6.0
  • Mana Cost at gem level 20 is now 25 (was 26).
  • Now deals 4 to 11 Fire damage at gem level 1 (unchanged) and 200 to 300 Fire damage at gem level 20 (from 202 to 302).
  • Now has a cast time of 0.75 seconds (from 0.9).
3.3.0
  • Now deals 4-11 fire damage at gem level 1 (up from 4-10), up to 202-302 fire damage at gem level 20 (up from 162-243).
2.1.0
  • Damage increased by around 20% higher at level 20.
2.0.0
  • Firestorm: Had a very slight damage buff. Area of effect of explosions increased by 11% (9 to 10). It now grants 1% area damage per 1% quality instead of reduced delay between fireballs. The Duration of Firestorm has been increased from 1.3 seconds to 2 seconds at all levels. Base Cast Speed has been increased from a cast time of 1 second to 900ms. Critical Strike Chance has been increased from 5% to 6%.
1.0.4
  • Firestorm: The radius of the area that fireballs land in has been increased by 39%. The delay between strikes has been reduced from 0.15 seconds to 0.10 seconds. Damage has been increased by 35%. The quality bonus has been reduced by 33.33% to match the reduced projectile delay.
1.0.0
  • Reduced mana cost.
0.11.2
  • The damage done by the Firestorm spell when used by all versions of Ambrosia and Merciless Fire Fury has been increased.
    Merciless Gravicius's Firestorm has been very slightly increased in damage.
0.11.1
  • Spells with Damage Effectiveness no longer have their own damage affected by Damage Effectiveness.
    Damage values on these skills have been updated to reflect this.
0.9.12qq
  • Fixed a bug where monsters in high level areas would not do the correct Firestorm damage.
0.9.11i
  • Fixed the randomness when it was used with Traps.
0.9.11f
  • Increased the damage and made its cluster tighter.
0.9.9
  • Fixed a bug where the damage from Firestorm would not display on the client at the right time.
0.9.6
  • Changed Firestorm to be affected less by additional damage from support gems.
  • Fixed a bug where Firestorm could hit monsters through walls.
0.9.5
  • Modified Firestorm's behaviour so that the explosions have a larger radius and
    are more likely to fall near the centre of the affected area.
  • Doubled the number of fireballs that fall and rebalanced damage around these changes.
0.9.3c
  • Raised the overall damage and its high level damage scaling.
0.9.3
  • Firestorm has been added to the game.

References

  1. Bex_GGG (September 17, 2020). "Alternate Quality Gems in Path of Exile: Heist". Path of Exile Forums. Retrieved January 13, 2021.
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