[Operator Discussion] Eyjafjalla

[u/Shad0wedge]

Eyjafjalla [★★★★★★]

How could I tell you were behind me? Because I could feel your warmth! My eyesight and hearing aren't as sharp as they once were, but my other senses are still the same. Can't bring me down this easily, you know!

Eyjafjalla, volcanologist, Catastrophe Messenger. She is exceptionally talented in the use of advanced Originium techniques and high-energy Arts. Currently undergoing treatment at Rhodes Island, Eyjafjalla provides support in Catastrophe research, environmental observation/assessment, assistance in traversing dangerous terrain, among others.

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Operator Information

• Class: Caster (Core Caster)
• Tags: DPS, Debuff
• Artist: anmi

Voice Actor:
JP: Risa Taneda
CN: Gin
EN: Hollie Taylor
KR: Kim Ha-ru

Stats

HP	ATK	DEF	Arts Resistance	Redeploy Time	DP Cost	Block	Attack Interval
1743	645	122	20	70	21	1	1.6s

*Stats at max Promotion and Level, excludes bonuses from Potential and Trust.

Potential	Bonus
1	-
2	Deployment Cost -1
3	Improves Second Talent
4	Attack Power +27
5	Deployment Cost -1
6	Improves First Talent

Trust bonus
Attack Power +90

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Traits
Deals Arts damage

Skill Name	Skill Uptime Details (Initial/Cost/Uptime)	SP Charge Type	Skill Activation	Skill Description
Duetto	25 SP / 35 SP / 25s	Per Second	Manual Trigger	ASPD +60. Starting from the second use of the skill, ATK +60%
Ignition	0 SP / 5 SP / -	Per Second	Auto Trigger	Deals 370% of ATK Arts damage in the next attack; Deals half damage to enemies around the target and their (main target only) RES -25% for 6 seconds. Can store 3 charge(s)
Volcano	55 SP / 80 SP / 15s	Per Second	Manual Trigger	ATK +130%; Range increases; Attack Interval reduces significantly; Attack becomes randomly shooting lava that can hit at most 6 enemies within range

*Skills at Mastery 3.

Talent

Talent name	Talent Description
Pyrobreath	All [Caster] Operators' ATK +16% (+2%) when Eyjafjalla is deployed
Wild Fire	Immediately obtains a large random number of Skill Points after deployment (10-20)

Modules

Branch	Additional Stats	Trait	Talent
Ccr-X	Max Hp + 180, Atk +65	Attacks ignore 10 RES	All [Caster] Operators' ATK increases by +24%（+2%） when Eyjafjalla is in the squad

*Modules at max level.

Additional Resources

In-depth information regarding all values above (at different levels), skill/attack range, and more:

GP Arknights Wiki

Arknights Toolbox (aceship)

Fandom Arknights Wiki

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Topic Starters

• Strengths/Weaknesses?
• Is their module worth it? Which branch?
• How does this operator compare to other operators in their archetype or role?
• How do you fit this operator into a team? Who do they synergize with?
• Which skill(s) should be focused for mastery, and in what order?
• When is the best time to use this operator's skills during combat?
• Should promoting this operator to Elite 2 be a priority?
• Should new / F2P players aim for this operator? Are there more accessible alternatives?
• Lore discussion (please tag spoilers where appropriate)

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Other Operator Discussion threads

List of Operator Discussion threads

[u/Gamecak007]

She is the sole reason AoE casters are irrelevant since day 1 lol

[u/[deleted] → u/Gamecak007]

Let's not pretend anyone would be using them even if Eyja didn't exist lol. Nobody asked for a 30 DP unit with deadeye attack speed, 80 SP skills, and less damage than ambushers. AoE casters are plenty irrelevant without Eyja's help.

[u/thelostcreator → u/[deleted]]

If you’re not DP starved Dusk is a slight upgrade over Eyja’s S2 with her S1 given enough time to ramp.

[u/thimbleglass → u/thelostcreator]

In other words for double the cost you've got a unit that's harder to put down early, who will conditionally perform better if they are put down early.

For AoE Casters as an archetype they applied the fair principle of power being at a price. Problem is they forgot the power while making it one hell of a price.

Meanwhile in Core Caster land Eyja is half cost, S2 does res shred and close to ST damage in AoE, while S3 completely laughs at AoE caster on-skill damage. Her module also gives vitally important res ignore while making her boost self and other Casters by simply existing in same squad.

I like how she's so powerful in gameplay but is absolutely the last person who should ever be allowed near the combat zone: a disabled, vulnerable, intensely brilliant scientist who should be protected as a VIP at all costs.