Vaal Fireball

For the non-Vaal counterpart, see Fireball.

Vaal Fireball is a Vaal spell that launches fireballs in all directions around the character. The fireballs will launch rapidly one at a time rotating clockwise around the player, continuing until all 32 fireballs have been launched.

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.

• Piercing: A fireball that pierces an enemy and hits another enemy will only cause the AoE damage effect on the last enemy struck. Any enemies hit by a projectile which successfully pierces or chains will take full spell damage but the projectile won't explode.

• Fork: Fork creates new projectiles on impact, and fireball explodes on impact, regardless of whether it is a first-generation projectile or a forked, second-generation projectile. Thus, the initial fireball projectile causes an explosion on impact, this impact spawns forked projectiles; the forked projectiles will also explode when making impact with a valid target.

• : Changes Vaal Fireball to launch 1 fireball that will split into 32 auto targeting fireballs if you manage to hit the initial target.

• Positioning: Phasing allows characters to move through monsters. Standing in the exact center of a very large monster while casting vaal fireball will cause most or all fireballs to hit 1 single target. Small rooms will also cause most or all hits against walls to overlap area of effect damage onto 1 target.

Gem level progression

Level			Fire Damage	Ignite Chance	More Ignite Damage	Radius	Exp.	Total Exp.
1	1	0	9 to 14	20%	50%	N/A	0	0
2	2	0	10 to 16	21%	52%	N/A	70	70
3	4	16	13 to 20	22%	54%	+1	308	378
4	7	22	18 to 27	23%	56%	+1	1554	1932
5	11	31	26 to 40	24%	58%	+2	6667	8599
6	16	41	40 to 60	25%	60%	+2	26047	34646
7	20	50	54 to 81	26%	62%	+3	49725	84371
8	24	58	72 to 109	27%	64%	+3	95714	180085
9	28	67	95 to 143	28%	66%	+4	169595	349680
10	32	75	124 to 186	29%	68%	+4	283759	633439
11	36	83	159 to 239	30%	70%	+5	453996	1087435
12	40	92	204 to 305	31%	72%	+5	703128	1790563
13	44	100	258 to 388	32%	74%	+6	1061223	2851786
14	48	109	326 to 490	33%	76%	+6	2065870	4917656
15	52	117	410 to 615	34%	78%	+7	2507110	7424766
16	56	125	513 to 770	35%	80%	+7	5798936	13223702
17	60	134	640 to 960	36%	82%	+8	15083919	28307621
18	64	142	795 to 1193	37%	84%	+8	27792735	56100356
19	67	148	934 to 1401	38%	86%	+9	43869739	99970095
20	70	155	1095 to 1643	39%	88%	+9	242081556	342051651
21	72	159	1217 to 1826	40%	90%	+10	N/A	N/A
22	74	N/A	1352 to 2028	41%	92%	+10	N/A	N/A
23	76	N/A	1501 to 2251	42%	94%	+10	N/A	N/A
24	78	N/A	1665 to 2497	43%	96%	+10	N/A	N/A
25	80	N/A	1846 to 2769	44%	98%	+10	N/A	N/A
26	82	N/A	2046 to 3069	45%	100%	+11	N/A	N/A
27	84	N/A	2266 to 3399	46%	102%	+11	N/A	N/A
28	86	N/A	2509 to 3763	47%	104%	+11	N/A	N/A
29	88	N/A	2777 to 4165	48%	106%	+11	N/A	N/A
30	90	N/A	3072 to 4608	49%	108%	+11	N/A	N/A
31	91	N/A	3231 to 4846	49%	109%	+12	N/A	N/A
32	92	N/A	3397 to 5095	50%	110%	+12	N/A	N/A
33	93	N/A	3572 to 5358	50%	111%	+12	N/A	N/A
34	94	N/A	3755 to 5633	51%	112%	+12	N/A	N/A
35	95	N/A	3947 to 5921	51%	113%	+12	N/A	N/A
36	96	N/A	4149 to 6224	52%	114%	+13	N/A	N/A
37	97	N/A	4361 to 6542	52%	115%	+13	N/A	N/A
38	98	N/A	4583 to 6875	53%	116%	+13	N/A	N/A
39	99	N/A	4816 to 7224	53%	117%	+13	N/A	N/A
40	100	N/A	5061 to 7591	54%	118%	+13	N/A	N/A

Threshold jewels

The following threshold jewels augment Vaal Fireball:

Alternate skill effects

Vaal Fireball has the following alternate skill effects:

Version history

Version	Changes
3.14.0	Now has a Soul Gain Prevention duration of 4 seconds (previously 5).
3.11.0	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).
3.6.0	Adjusted to match the damage and added damage effectiveness of Fireball.
3.3.0	Now deals 7-10 fire damage at gem level 1 (down from 8-11), up to 890-1335 fire damage at gem level 20 (up from 560-841). Now has 20% chance to ignite enemies at gem level 1, up to 39% at gem level 20. Now gains up to +4 to the explosion's radius at gem level 20. Now deals 50% more damage with Ignite at gem level 1, up to 88% more at gem level 20. Now gains 1% chance to ignite enemies per 2% gem quality (down from 2% chance to ignite per 1% gem quality). Now has an added damage effectiveness of 160% (up from 125%). Now requires 30 souls per use (down from 32). Now prevents you from gaining Vaal souls for 5 seconds after use.
2.0.0	Now has 50% increased Area of Effect at all Levels. Damage adjusted to compensate for damage adjustements to Fireball.
1.1.1	If you use a skill that causes a projectile spiral (like Vaal Fireball) from inside an enemy, then only the first projectile can collide with the enemy now.
1.1.0d	Vaal Skill soul counts were initially balanced for Merciless difficulty, where there are more monsters. We want them to be easier to use in Normal and Cruel difficulty. We have halved the number of souls required for each skill. In Cruel difficulty, skills require 50% more souls to uses. In Merciless difficulty, they require 100% more (which is the same as before the patch).
1.1.0	Introduced to the game.