Acid Terror — Ragnarok M Alchemist Skill

Active

Physical

Attack

20 ranks

Acid Terror

Use acid to deal Dmg (Atk ×300% ＋M.Atk ×300%) to a single enemy, with a 6% chance to cause HP loss and a 1% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]

Skill type: Attack
Target: Enemy
Range: 6 m
Cast time: 1 s
Cast delay: 2 s
SP cost: 12
Damage: 300%

Damage formula

How each damage event is calculated, including level scaling, defenses, penetration, criticals, target modifiers, and caps.

Coefficient only

Level 20 coefficient: 1,130%; ×11.30 per damage event · Lv. 1: 300% → Lv. 20: 1,130%

Damage events per cast: 1 damage event; Each event runs through the formula separately.

Coefficient shown

This page shows the skill coefficient and damage-event count. It does not calculate the final result through defense, penetration, target modifiers, criticals, or caps.

Effect scaling

Maximum-level buff, passive, duration, chance, and attribute results with a resolved per-level formula.

Level 20

Source: Chemical Etching

Max-level result Physical Damage Reduction Chemical Etching Lv. 10: -15%
Scaling rule: -1.5% × Chemical Etching level + 0%

Affects: Enemy

Source: Chemical Etching

Max-level result Physical Defense Chemical Etching - Armor Breaking Lv. 7: -14%
Scaling rule: -2% × Chemical Etching - Armor Breaking level + 0%

Affects: Enemy

Skill access

Learned by

Alchemist

Physical

Requires

No prerequisite skill.

Level comparison

Start with the max-level result, then compare exact client values and learning costs at every lower level.

Levels 1–20

Metric	Max level Level 20	Level 19 Level 19	Level 18 Level 18	Level 17 Level 17	Level 16 Level 16	Level 15 Level 15	Level 14 Level 14	Level 13 Level 13	Level 12 Level 12	Level 11 Level 11	Level 10 Level 10	Level 9 Level 9	Level 8 Level 8	Level 7 Level 7	Level 6 Level 6	Level 5 Level 5	Level 4 Level 4	Level 3 Level 3	Level 2 Level 2	Level 1 Level 1
Damage	1,130%	1,110%	1,090%	1,070%	1,050%	1,030%	1,010%	990%	970.00%	950%	930.00%	860%	790%	720%	650%	580%	510.00%	440.00%	370%	300%
SP cost	40	39	38	37	36	35	34	33	32	31	30	28	26	24	22	20	18	16	14	12
Cast time	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s	1 s
Cast delay	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s	2 s
Range	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m	6 m
Skill points	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Applied effects	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%	Enemy Duration: 60 s Enemy Physical Damage Reduction: -15% -1.5% × Chemical Etching level + 0% Physical Defense: -14% -2% × Chemical Etching - Armor Breaking level + 0% Enemy Physical Attack: -25% Enemy Del Hp %: +20% Enemy Physical Damage Reduction: -5% Skill Damage Reduction: -10%
Description	Use acid to deal Dmg (Atk ×1130% ＋M.Atk ×850%) to a single enemy, with a 25% chance to cause HP loss and a 20% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×1110% ＋M.Atk ×840%) to a single enemy, with a 24% chance to cause HP loss and a 19% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×1090% ＋M.Atk ×830%) to a single enemy, with a 23% chance to cause HP loss and a 18% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×1070% ＋M.Atk ×820%) to a single enemy, with a 22% chance to cause HP loss and a 17% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×1050% ＋M.Atk ×810%) to a single enemy, with a 21% chance to cause HP loss and a 16% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×1030% ＋M.Atk ×800%) to a single enemy, with a 20% chance to cause HP loss and a 15% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×1010% ＋M.Atk ×790%) to a single enemy, with a 19% chance to cause HP loss and a 14% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×990% ＋M.Atk ×780%) to a single enemy, with a 18% chance to cause HP loss and a 13% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×970% ＋M.Atk ×770%) to a single enemy, with a 17% chance to cause HP loss and a 12% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×950% ＋M.Atk ×760%) to a single enemy, with a 16% chance to cause HP loss and a 11% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×930% ＋M.Atk ×750%) to a single enemy, with a 15% chance to cause HP loss and a 10% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×860% ＋M.Atk ×700%) to a single enemy, with a 14% chance to cause HP loss and a 9% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×790% ＋M.Atk ×650%) to a single enemy, with a 13% chance to cause HP loss and a 8% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×720% ＋M.Atk ×600%) to a single enemy, with a 12% chance to cause HP loss and a 7% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×650% ＋M.Atk ×550%) to a single enemy, with a 11% chance to cause HP loss and a 6% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×580% ＋M.Atk ×500%) to a single enemy, with a 10% chance to cause HP loss and a 5% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×510% ＋M.Atk ×450%) to a single enemy, with a 9% chance to cause HP loss and a 4% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×440% ＋M.Atk ×400%) to a single enemy, with a 8% chance to cause HP loss and a 3% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×370% ＋M.Atk ×350%) to a single enemy, with a 7% chance to cause HP loss and a 2% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]	Use acid to deal Dmg (Atk ×300% ＋M.Atk ×300%) to a single enemy, with a 6% chance to cause HP loss and a 1% chance to break enemy's armor. The skill's damage ignores enemy's Flee, [Kyrie Eleison] and [Auto Guard]

Applied effects

Maximum-level buffs, conditions, and stat changes.

Level 20

Acid destroys armors

Enemy

Applied change

Break Equip

Duration: 60 s

Chemical Etching

DMG Reduction down

Enemy

Applied change

Physical Damage Reduction: -15%; Formula: -1.5% × Chemical Etching level + 0%
Physical Defense: -14%; Formula: -2% × Chemical Etching - Armor Breaking level + 0%

Bleeding Effect [HP Loss]

Enemy

Applied change

Physical Attack: -25%

HP Loss Effect

Enemy

Applied change

Hp Reduce

Del Hp %: +20%

酸蚀之触[1]效果

物伤减免和技能伤害减免降低

Enemy

Applied change

Physical Damage Reduction: -5%
Skill Damage Reduction: -10%

How to compare skill levels

Compare damage, hits, SP, timing, requirements, and linked buffs at the same level. A new hit, target scope, or condition can matter more than the largest percentage increase. Read the related player guide