Combustion Support

Chance to Ignite is a support gem that grants supported skills that deal fire damage a chance to ignite the enemy. The normal rules for burning apply, linking this gem to a skill that deals no fire damage is pointless; unless the user is igniting enemies via cold damage skills with The Three DragonsThe Three Dragons
Golden MaskQuality: +20%
Evasion: 115
Energy Shield: 22Requires Level 35, 40 Dex, 40 Int+(26-30)% to all Elemental Resistances
Your Fire Damage can Shock but not Ignite
Your Cold Damage can Ignite but not Freeze or Chill
Your Lightning Damage can Freeze but not Shock"The ice seared his naked feet
As the lightning stilled his heart,
But it was the flames upon his lover's face
That roused him to vengeance."
- From 'The Three Dragons' by Victario of Sarn helmet.

Skill functions and interactions

The Chance to Ignite an enemy given by this gem is independent of the chance to ignite an enemy as a result of a critical strike. For instance, if a supported skill has a 20% chance to score a critical strike, and 25% chance to ignite, the overall probability that an enemy will be ignited is:

1 - (( 1 - 0.20 ) * ( 1 - 0.25 )) = 1 - 0.6 = 40% chance to ignite

It is worth noting that as opposed to chance to critical strike, which is checked once for each cast of the skill, the chance to ignite is checked separately for each individual hit. For instance an explosion from Molten Shell linked with Chance to Ignite that hits two enemies at once could potentially ignite one enemy, but not the other.

The chance to Ignite from this gem will stack additively with chance to Ignite modifiers from other sources, such as from the Blaze notable passive skill, or the quality bonus on Fireball.

Gem level progression

Level			Ignite Chance	more Fire Damage	Exp.	Total Exp.
1	8	18	30%	10%	0	0
2	10	21	31%	11%	3231	3231
3	13	25	32%	12%	9569	12800
4	17	31	33%	13%	28189	40989
5	21	37	34%	14%	59146	100135
6	25	43	35%	15%	111192	211327
7	29	49	36%	16%	193800	405127
8	33	55	37%	17%	320280	725407
9	37	61	38%	18%	507839	1233246
10	40	66	39%	19%	554379	1787625
11	43	70	40%	20%	755049	2542674
12	46	75	41%	21%	1016533	3559207
13	49	79	42%	22%	1898602	5457809
14	52	84	43%	23%	1964019	7421828
15	55	88	44%	24%	2573731	9995559
16	58	93	45%	25%	7610839	17606398
17	61	97	46%	26%	13436884	31043282
18	64	102	47%	27%	25050611	56093893
19	67	106	48%	28%	43867388	99961281
20	70	111	49%	29%	242078618	342039899
21	72	114	50%	30%	N/A	N/A
22	74	N/A	51%	31%	N/A	N/A
23	76	N/A	52%	32%	N/A	N/A
24	78	N/A	53%	33%	N/A	N/A
25	80	N/A	54%	34%	N/A	N/A
26	82	N/A	55%	35%	N/A	N/A
27	84	N/A	56%	36%	N/A	N/A
28	86	N/A	57%	37%	N/A	N/A
29	88	N/A	58%	38%	N/A	N/A
30	90	N/A	59%	39%	N/A	N/A
31	91	N/A	59%	39%	N/A	N/A
32	92	N/A	60%	40%	N/A	N/A
33	93	N/A	60%	40%	N/A	N/A
34	94	N/A	61%	41%	N/A	N/A
35	95	N/A	61%	41%	N/A	N/A
36	96	N/A	62%	42%	N/A	N/A
37	97	N/A	62%	42%	N/A	N/A
38	98	N/A	63%	43%	N/A	N/A
39	99	N/A	63%	43%	N/A	N/A
40	100	N/A	64%	44%	N/A	N/A

Version history

Version	Changes
0.9.9	Increased mana cost multiplier from 100% to 110%.
0.9.4e	Fixed a bug where Chance to Ignite did not scale properly under the Elemental Weakness curse.
0.9.3	Chance to Ignite has been added to the game.