FirestormSpell, AoE, Duration, Fire Level: (1-20) Cost: (13-25) Mana Cast Time: 0.75 sec Critical Strike Chance: 6.00% Effectiveness of Added Damage: (60-80)%Requires Level 28Flaming bolts rain down over the targeted area. They explode when landing, dealing damage to nearby enemies.Base duration is 1.40 seconds Deals (23-361) to (35-541) Fire Damage One impact every 0.15 seconds Base radius is 1.3 metres First Impact has 100% more Area of Effect First Impact deals 325% more Damage with Hits and Ailments Maximum 3 Firestorms at a time
Additional Effects From 1-20% Quality: Base radius is (0.01-0.2) metresPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
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, increasing the size of the spell area means that each monster within the spell area is within fewer individual fireball bursts[1]; thus, less spell damage is dealt to any single 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 Effectiveness: Damage from secondary sources like 'added damage' supports or heralds applies at only 80% of their listed value.
Damage per Second: Due to the complexity of estimating actual DPS of the skill including all possible factors, ingame tooltip shows only 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
Level
Mana Cost
Damage Effectiveness
Fire Damage
Exp.
Total Exp.
1
28
67
13
60%
23 to 35
0
0
2
31
73
14
65%
29 to 43
199345
199345
3
34
79
15
65%
36 to 54
285815
485160
4
37
85
16
65%
44 to 66
401344
886504
5
40
92
16
65%
54 to 81
554379
1440883
6
42
96
17
70%
62 to 93
477437
1918320
7
44
100
18
70%
71 to 106
583786
2502106
8
46
104
18
70%
81 to 121
710359
3212465
9
48
109
19
70%
92 to 138
1355511
4567976
10
50
113
19
70%
105 to 157
1138877
5706853
11
52
117
20
70%
119 to 178
1368233
7075086
12
54
121
20
75%
135 to 202
1638338
8713424
13
56
125
21
75%
153 to 229
1956648
10670072
14
58
130
21
75%
173 to 260
3655184
14325256
15
60
134
22
75%
196 to 294
3017327
17342583
16
62
138
22
75%
222 to 333
7759995
25102578
17
64
142
23
80%
251 to 376
15138193
40240771
18
66
146
24
80%
283 to 425
26083825
66324596
19
68
151
24
80%
320 to 480
62620247
128944843
20
70
155
25
80%
361 to 541
211708088
340652931
21
72
159
25
80%
407 to 610
—
—
22
74
—
26
80%
458 to 688
—
—
23
76
—
26
80%
516 to 774
—
—
24
78
—
27
80%
581 to 872
—
—
25
80
—
27
80%
654 to 980
—
—
26
82
—
28
80%
735 to 1102
—
—
27
84
—
28
80%
826 to 1238
—
—
28
86
—
29
80%
927 to 1391
—
—
29
88
—
30
80%
1041 to 1562
—
—
30
90
—
30
80%
1169 to 1753
—
—
31
91
—
30
80%
1238 to 1857
—
—
32
92
—
31
80%
1311 to 1966
—
—
33
93
—
31
80%
1388 to 2082
—
—
34
94
—
31
80%
1470 to 2205
—
—
35
95
—
31
80%
1556 to 2335
—
—
36
96
—
32
80%
1648 to 2472
—
—
37
97
—
32
80%
1744 to 2617
—
—
38
98
—
32
80%
1846 to 2770
—
—
39
99
—
33
80%
1954 to 2932
—
—
40
100
—
33
80%
2068 to 3103
—
—
Item acquisition
Firestorm can drop anywhere.
Recipes
Firestorm can be created from the following recipes:
Amount
Part
Description
Meta
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 corruptedlevel 21 Spell gem
A
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
A
3
Gemcutter's PromiseGemcutter's Promise3Gem 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 gem with 20% quality
A
1
Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
Random gem with 1–20% quality
A
1
The VoidThe Void1Reach into the Void and claim your prize.
Random divination card set exchange
A
Quest reward
This item is given as a quest reward for the following quests:
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.
Quality on Anomalous Firestorm no longer grants “(0.00)-(-0.06) seconds to Base Duration”, or “First Impact deals 0-60% more Damage with Hits and Ailments”. Instead, it now grants 0-10% chance to Ignite Enemies.
Because of base Ignite damage changes, Ignite with the skill is now 150% higher. If using the Anomalous quality, the Ignite is now 110% higher.
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)
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%.
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.
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.
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.
Added new skill prototype - Firestorm: Flaming bolts rain down over the targeted area. They explode when landing, dealing damage to nearby enemies.
References
↑While each fireball takes up the same proportion of the total area as the radius of both increases proportionally, the monster's radius does not change, so it takes up less of the spell area. Thus, the probability for a given fireball to hit the monster goes down as AOE goes up.