Fireball

For the Vaal-themed counterpart, see Vaal Fireball.

Tapping into the chaotic, hungry elemental force of fire, the caster sends a roaring ball of flame hurling at the target. This searing projectile flies unerringly outward, impacting with tremendous force, and burning not only the target, but adjacent foes as well. Skilled wielders of flame can ignite the enemy, causing them to burn for additional damage. A master of the fireball lays waste to all who beset him, reducing his enemies to cinders.

Description on the official Path of Exile website

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. Full spell damage is done to any enemy in range of the explosion. The threshold jewel Rolling FlamesRolling Flames
  Cobalt JewelLimited to: 1
  Radius: Medium(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 scorchFrom 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. causes the radius to increase the further the fireball travels before collision.

• Pierce, Chain, and Fork: A fireball that hits an enemy without terminating will only cause the AoE damage effect on the last enemy struck. Any enemies hit by a projectile that pierces, forks, or chains will take full damage but the projectile will not explode and deal AoE damage.

Gem level progression

Level			Mana Cost	Fire Damage	Ignite Chance	Exp.	Total Exp.
1	1	0	6	N/A	N/A	0	0
2	2	0	6	N/A	N/A	70	70
3	4	16	7	N/A	N/A	308	378
4	7	22	8	N/A	N/A	1554	1932
5	11	31	9	N/A	N/A	6667	8599
6	16	41	10	N/A	N/A	26047	34646
7	20	50	11	N/A	N/A	49725	84371
8	24	58	12	N/A	N/A	95714	180085
9	28	67	13	N/A	N/A	169595	349680
10	32	75	14	N/A	N/A	283759	633439
11	36	83	15	N/A	N/A	453996	1087435
12	40	92	16	N/A	N/A	703128	1790563
13	44	100	18	N/A	N/A	1061223	2851786
14	48	109	19	N/A	N/A	2065870	4917656
15	52	117	20	N/A	N/A	2507110	7424766
16	56	125	21	N/A	N/A	5798936	13223702
17	60	134	22	N/A	N/A	15083919	28307621
18	64	142	23	N/A	N/A	27792735	56100356
19	67	148	24	N/A	N/A	43869739	99970095
20	70	155	25	N/A	N/A	242081556	342051651
21	72	159	25	N/A	N/A	N/A	N/A
22	74	N/A	26	N/A	N/A	N/A	N/A
23	76	N/A	26	N/A	N/A	N/A	N/A
24	78	N/A	27	N/A	N/A	N/A	N/A
25	80	N/A	27	N/A	N/A	N/A	N/A
26	82	N/A	28	N/A	N/A	N/A	N/A
27	84	N/A	28	N/A	N/A	N/A	N/A
28	86	N/A	29	N/A	N/A	N/A	N/A
29	88	N/A	30	N/A	N/A	N/A	N/A
30	90	N/A	30	N/A	N/A	N/A	N/A
31	91	N/A	30	N/A	N/A	N/A	N/A
32	92	N/A	31	N/A	N/A	N/A	N/A
33	93	N/A	31	N/A	N/A	N/A	N/A
34	94	N/A	31	N/A	N/A	N/A	N/A
35	95	N/A	31	N/A	N/A	N/A	N/A
36	96	N/A	32	N/A	N/A	N/A	N/A
37	97	N/A	32	N/A	N/A	N/A	N/A
38	98	N/A	32	N/A	N/A	N/A	N/A
39	99	N/A	33	N/A	N/A	N/A	N/A
40	100	N/A	33	N/A	N/A	N/A	N/A

Threshold Jewel

The following threshold jewels augment the skill gem:

Alternate skill effects

Name	Cost	Description
Dragon Fireball EffectDragon Fireball EffectSkill Gem EffectYour Fireball becomes a flaming dragon whelp skeleton that explodes on impact	90	Replaces the standard effect on a gem with a flying, burning dragon. Preview

Version history

Version	Changes
2.0.0	Damage increased by 15%. It now has a base chance to ignite. Its projectile speed has been increased by 30%.
1.1.0	Increased the damage of Fireball at low and high levels.
1.0.4	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).
0.10.0	Damage progression increased - now 14% increased by level 15.
0.9.12s	Damage progression increased. By skill level 15, it's doing 16% more damage than before.
0.9.7b	Increased the damage at higher levels.
0.9.7	The damage has been increased.
0.9.6	Increased the damage.
0.9.5g	Increased the Critical Strike chance.
0.9.3c	Reduced damage by 5%.
0.9.2	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%.