Fireball Mastery

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[Passive] Decreases the mana cost of normal fireball combos and increases their range.

Requirements

Class	Master	Level Required	SP Cost per Level	Alternative
High Magician	Lv. 20	35	3	Freezing Point Investigation

Skill Level	Level Required	MP Usage Decrease	Range Increase
1	35	3%	2%
2	35	6%	4%
3	36	9%	6%
4	39	12%	8%
5	42	15%	10%
6	45	18%	12%
7	48	21%	14%
8	51	24%	16%
9	54	27%	18%
10	57	30%	20%
11	60	33%	22%
12	63	36%	24%
13	66	39%	26%
14	69	42%	28%
15	72	45%	30%

This skill only applies to fireballs in combos and Chain Fireball. Circle Flame is unaffected.
When maxed out, quite a few combos will reach beyond 16:9 screen boundary, making it easy to hit enemies at a safe distance. Only Grand Archers with their Hawk Eye skills has longer range combos.
This skill make it feasible to transit from close to mid range combat style to a long range style (both safer and hit harder) without running out of mana.

Server	Name	Translation
South Korea	??	Fireball Study
France	Boule de feu améliorée	Improved fireball

Skill Level	Level Required	MP Usage Decrease	Range Increase
1	35	3%	2%
2	35	6%	4%
3	36	9%	6%
4	39	12%	8%
5	42	15%	10%
6	45	18%	12%
7	48	21%	14%
8	51	24%	16%
9	54	27%	18%
10	57	30%	20%
11	60	33%	22%
12	63	36%	24%
13	66	39%	26%
14	69	42%	28%
15	72	45%	30%

Skill Level	Level Required	MP Usage Decrease	Range Increase
1	35	3%	2%
2	35	6%	4%
3	36	9%	6%
4	39	12%	8%
5	42	15%	10%
6	45	18%	12%
7	48	21%	14%
8	51	24%	16%
9	54	27%	18%
10	57	30%	20%
11	60	33%	22%
12	63	36%	24%
13	66	39%	26%
14	69	42%	28%
15	72	45%	30%

Skill Level	Level Required	MP Usage Decrease	Range Increase
1	35	3%	2%
2	35	6%	4%
3	36	9%	6%
4	39	12%	8%
5	42	15%	10%
6	45	18%	12%
7	48	21%	14%
8	51	24%	16%
9	54	27%	18%
10	57	30%	20%
11	60	33%	22%
12	63	36%	24%
13	66	39%	26%
14	69	42%	28%
15	72	45%	30%