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FireballProjectile, Spell, AoE, Fire
Radius: 9
Mana Cost: (6-25)
Cast Time: 0.75 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 240%
Projectile Speed: 1040
Unleashes a ball of fire towards a target which explodes, damaging nearby foes.Per 1% Quality:
1% increased Projectile Speed
Deals (9-1095) to (14-1643) Fire Damage
(20-39)% chance to Ignite enemies
(50-88)% more Damage with Ignite
Projectiles gain Radius as they travel farther, up to +(0-9) Radius
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Fireball skill icon.pngFireball inventory icon.png
Level: 5
Purchase Costs
Normal1x Scroll of Wisdom
Sell Price
1x Scroll Fragment
Item class: Active Skill Gems
Metadata ID: Metadata/Items/Gems/SkillGemFireball

Fireball skill screenshot.jpg

Fireball is a spell that fires a projectile, dealing fire damage with an increased chance to Ignite status icon.pngIgnite.

Skill functions and interactions

  • Area of Effect: The radius of the explosion caused by collision (with either an enemy or a terrain obstruction) is affected by all AoE increases, with a base radius of 9[1]. Full spell damage is done to any enemy in range of the explosion.
  • Pierce, Chain, Fork: Enemies hit by a projectile that pierces, chains, or forks will take full damage from the hit, but the projectile will not explode until it hits an enemy and does not pierce, chain, or fork, or hits a wall.
  • Shotgunning: Each enemy can only be hit directly by one projectile per cast. However, if an enemy is in range of the explosion effect of more than one projectile from the same cast, and those projectiles each exploded on different enemies or a wall, it will take full damage from each explosion.
  • Can be used in left mouse button slot to cast and move.

Gem level progression

RadiusExp.Total Exp.
11069 to 1420%50%N/A00
220610 to 1621%52%N/A7070
3416713 to 2022%54%+1308378
4722818 to 2723%56%+11,5541,932
51131926 to 4024%58%+26,6678,599
616411040 to 6025%60%+226,04734,646
720501154 to 8126%62%+349,72584,371
824581272 to 10927%64%+395,714180,085
928671395 to 14328%66%+4169,595349,680
10327514124 to 18629%68%+4283,759633,439
11368315159 to 23930%70%+5453,9961,087,435
12409216204 to 30531%72%+5703,1281,790,563
134410018258 to 38832%74%+61,061,2232,851,786
144810919326 to 49033%76%+62,065,8704,917,656
155211720410 to 61534%78%+72,507,1107,424,766
165612521513 to 77035%80%+75,798,93613,223,702
176013422640 to 96036%82%+815,083,91928,307,621
186414223795 to 119337%84%+827,792,73556,100,356
196714824934 to 140138%86%+943,869,73999,970,095
2070155251095 to 164339%88%+9242,081,556342,051,651
2172159251217 to 182640%90%+10N/AN/A
2274N/A261352 to 202841%92%+10N/AN/A
2376N/A261501 to 225142%94%+10N/AN/A
2478N/A271665 to 249743%96%+10N/AN/A
2580N/A271846 to 276944%98%+10N/AN/A
2682N/A282046 to 306945%100%+11N/AN/A
2784N/A282266 to 339946%102%+11N/AN/A
2886N/A292509 to 376347%104%+11N/AN/A
2988N/A302777 to 416548%106%+11N/AN/A
3090N/A303072 to 460849%108%+11N/AN/A
3191N/A303231 to 484650%109%+12N/AN/A
3292N/A313397 to 509551%110%+12N/AN/A
3393N/A313572 to 535852%111%+12N/AN/A
3494N/A313755 to 563353%112%+12N/AN/A
3595N/A313947 to 592154%113%+12N/AN/A
3696N/A324149 to 622455%114%+13N/AN/A
3797N/A324361 to 654256%115%+13N/AN/A
3898N/A324583 to 687557%116%+13N/AN/A
3999N/A334816 to 722458%117%+13N/AN/A
40100N/A335061 to 759159%118%+13N/AN/A

Item acquisition

Upgrade paths

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

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
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 (Q20)Automatic

Vendor reward

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

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
Enemy at the Gate
Act 1
A Fixture of Fate
Act 3
Fallen from Grace
Act 6
Lilly Roth

Threshold jewels

The following threshold jewels augment Fireball:

Rolling FlamesRolling Flames
Cobalt Jewel
Limited to: 1
Radius: Medium (1200)
(10-15)% increased Fire Damage
With at least 40 Intelligence in Radius, Fireball cannot ignite
With at least 40 Intelligence in Radius, Fireball has +(30-50)% chance to inflict scorch
From north to south the sea of fire swept,
Rolling waves of gorging flame,
Growing taller and hungrier,
With every land they consumed.
Place into an allocated Jewel Socket on the Passive Skill Tree. Right click to remove from the Socket.
1Medium (1200)(10-15)% increased Fire Damage
With at least 40 Intelligence in Radius, Fireball cannot ignite
With at least 40 Intelligence in Radius, Fireball has +(30-50)% chance to inflict scorch

Related helmet enchantments

The following helmet enchantments affect Fireball.

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 Fireball Cast Speed 1668% increased Fireball Cast Speedhelmet 100
default 0
Enchantment Fireball Cast Speed 27512% increased Fireball Cast Speedhelmet 100
default 0
Enchantment Fireball Damage 16625% increased Fireball Damagehelmet 100
default 0
Enchantment Fireball Damage 27540% increased Fireball Damagehelmet 100
default 0
Enchantment Fireball Ignite Chance 166Fireball has +20% chance to Ignitehelmet 100
default 0
Enchantment Fireball Ignite Chance 275Fireball has +30% chance to Ignitehelmet 100
default 0

Alternate skill effects

Fireball has the following alternate skill effects:

Dragon Fireball EffectDragon Fireball EffectSkill Gem EffectYour Fireball becomes a flaming dragon whelp skeleton that explodes on impactYour Fireball becomes a flaming dragon whelp skeleton that explodes on impact


Monsters using this skill:

  • Goatman Fire-raiser
  • Flame Sentinel + Lesser Multiple Projectiles SupportLesser Multiple Projectiles SupportSupport, Projectile
    Icon: l
    Mana Multiplier: 140%
    Requires Level 8Supports projectile skills.Per 1% Quality:
    Supported Skills have 0.5% increased Attack Speed
    Supported Skills have 0.5% increased Cast Speed
    Supported Skills fire 2 additional Projectiles
    Supported Skills deal (15-6)% less Projectile Damage
    This 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.
  • Solar Guard

Version history

Version Changes
  • Now has an added Damage effectiveness of 240% (from 180%).
  • No longer gains additional explosion radius as the gem levels up.
  • Now gains additional explosion radius based on the distance the projectile has travelled as the gem levels up, up to +9 at gem level 20.
  • Now gains 1% increased Projectile Speed per 1% gem quality (previously 0.5% chance to ignite per 1% gem quality).
  • Mana Cost at gem level 20 is now 25 (was 26).
  • Now deals 9 to 14 Fire damage at gem level 1 (from 7 to 10) and 1095 to 1643 Fire damage at level 20 (from 890 to 1335).
  • Now has an added damage effectiveness of 180% (from 160%).
  • Now deals 7-10 fire damage at gem level 1 (same as previously), up to 890 to 1335 fire damage at gem level 20 (up from 739-1109).
  • Now has a cast time of 0.75 seconds (down from 0.85 seconds).
  • Now gains up to +4 to the explosion's radius at gem level 20 (up from +3).
  • Now has an added damage effectiveness of 160% (up from 100%).
  • Now deals 50% more damage with Ignite at gem level 1, up to 88% more at gem level 20.
  • Fireball gains 1 additional unit of radius every 6 levels.
  • No longer gain increased area of effect radius.
  • 50% more damage at gem level 20.
  • Damage increased by 15%. It now has a base chance to ignite. Its projectile speed has been increased by 30%.
  • Increased the damage of Fireball at low and high levels.
  • The area of effect has been increased by 12%. Damage has been increased at all levels (by around 20% at level one and around 23% at level 15).
  • Damage progression increased - now 14% increased by level 15.
  • Damage progression increased. By skill level 15, it's doing 16% more damage than before.
  • Increased the damage at higher levels.
  • The damage has been increased.
  • Increased the damage.
  • Reduced damage by 5%.
  • Fireball splash damage is now centered on the monster itself,
    rather than the point of impact (which was in front of the monster).
  • Increased Fireball's splash Area of Effect.
  • Increased its damage by 23%.
  • Slightly increased Fireball mana cost and reduced its damage
  • Major fix to projectile/fireball code (fixed crashes and strange behaviour)