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Firestorm

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Firestorm
Active skill gem
  
Attribute(s)Intelligence
KeywordsFire, Spell, AoE, Duration
Cast time1 sec
Radius25 for storm, 9 for individual fireballs
Critical Strike Chance5%
Damage effectiveness20%
Per 1% QualityReduces the time between each fireball by 0.001s
Flaming bolts rain down over the targeted area. They explode when landing, dealing damage to nearby enemies.
Deals x–y Fire Damage
Base duration is 1.30 seconds
One fireball falls every 0.10 seconds
Screenshot of Firestorm

Perhaps the most feared area effect skill in the Witch's arsenal, the mighty Firestorm skill is legendary for its power and cruelty. The incantation tears a rift in the heavens that showers a wide swath of ground in a rain of searing flames. These bolts pound down without mercy, burning everything they touch, then exploding violently to cause even more harm.

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.

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

Low Damage Effectiveness: This stat causes the base spell damage, as well as added damage from supports such as Added Lightning/Cold/Chaos Damage, to be only 20% of their listed effectiveness. This limits the effectiveness of adding base damage to spells that create many small hits instead of one large effect.

Gem level progression

Level Lvl. Int. Mana
Cost
Fire
Damage
Exp.
1 4 16 6 2–5 841
2 6 20 7 4–6 3,099
3 9 27 8 5–8 7,433
4 12 33 9 7–10 15,249
5 15 39 10 8–12 41,517
6 19 48 12 11–16 81,983
7 23 56 14 14–20 199,180
8 28 67 16 18–27 604,431
9 33 77 18 24–36 631,832
10 39 90 20 32–49 959,669
11 43 98 22 39–59 1,426,490
12 46 104 23 46–68 2,737,323
13 49 111 24 53–79 3,289,072
14 52 117 25 60–90 3,351,223
15 55 123 27 69–104 9,936,192
16 58 130 28 79–118 21,346,246
17 61 136 29 90–135 50,693,883
18 64 142 30 103–154 90,050,361
19 66 146 31 112-168 147,034,294
20 68 151 32 122–183 N/A
21 68 151 33 133-199 N/A
22 68 151 33 144-216 N/A
23 68 151 34 157-235 N/A

Quest reward

This skill can be gained as a reward for finishing quests:

Alternate skill effects

Name Cost Description
Siege Firestorm Effect
Siege Firestorm Effect.png
Shop Item Coin.png25 Replaces the standard projectile effects on a Firestorm gem with burning cages of spiked metal.

Shop Item Video Icon.png Preview

Version history

Version Changes
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.