
Caster
Leizi
★★★★★
Yan
Introduction
Leizi is a 5-star character in Arknights. Leizi's class is Caster. Faction: Yan.
On the combined Arknights tier list Leizi is B tier, 174th of the 410 characters ranked, from where 3 community tier lists put Leizi.
What Leizi does
Her second skill is the reason to bring her: 150% more ATK, and her attacks stop losing damage on each target after the first. Against unblocked enemies she also gets 23% more ATK.
Profile
Leizi is a female Kylin. Her birthday is Mar 5, and she stands 171cm tall. Leizi is voiced by Skye in Chinese, 小巫 in English, Yuhko Kaida in Japanese, and Kang Si-hyun in Korean. 竜崎いち drew her.
Stories
9Basic Info
[Code Name] Leizi
[Gender] Female
[Combat Experience] Five Years
[Place of Birth] Yan
[Date of Birth] Mar 5
[Race] Kylin
[Height] 171cm
[Infection Status]
Medical tests have confirmed that no infection is present.
Physical Exam
[Physical Strength] Standard
[Mobility] Excellent
[Physical Resilience] Standard
[Tactical Acumen] Excellent
[Combat Skill] Excellent
[Originium Arts Assimilation] Exceptional
Profile
Leizi, an official from Yan's Central Judicial Office, is temporarily residing in Rhodes Island after signing an investigation agreement. Well-trained in combat skills and possessing unique Originium Arts, Leizi excels in annihilation battles and positional warfare. However, because of her noteworthy background and ambiguous motives, it is recommended to err on the side of a passive, non-cooperative tone when communicating with her.
Clinical Analysis
Imaging tests reveal clear, normal outlines of internal organs, and no abnormal shadows have been detected. Originium granules have not been detected in the circulatory system and there are no other signs of infection. At this time, this operator can be confirmed to be uninfected.
[Cell-Originium Assimilation] 0%
Operator Leizi shows no signs of Oripathy infection.
[Blood Originium-Crystal Density] 0.11u/L
Her indices are very low.
Having that said, what are we even doing for her? Is she going to live here? Are you crazy?
--Gaviel, Medic Operator
Archive File 1
[Originium Arts Overview] 'Lei Fa' is a technique spreading through Yan that focuses on the manipulation of electricity. Many mature schools of Originium Arts share similar methods of inheritance - for example, Leithanians use movements, the Sarkaz lead through ceremonies, and various guilds of Arts practitioners conduct research, all for the purpose of passing down the theoretical and practical components of Originium Arts. As one of the traditional Originium Arts originating from Yan, Lei Fa has a deeper history than most other forms of Arts. As a system shrouded in mysticism, the requirements for practitioners of Lei Fa are also restrictive and physically demanding. Its inheritance system gradually evolved into a solemn ritual of sorts, much like the passage of power. The end result was that Lei Fa tacitly became synonymous with the position of power, subsuming the popular symbol of law enforcement, and even becoming a form of self-cultivation in the quest for spiritual transcendence. As for rumors of the physical basis of 'transcendence,' I can only say that as an Originium Arts researcher outside of Yan's cultural circles... I must harbor a healthy amount of skepticism.
Obviously, Leizi exhibits a degree of pride for the Arts she uses.
According to some officials, when she taps into her powerful Originium Arts, her hair will become very smooth. Though I don't know why, I can scarcely imagine anything more worth investigating...
--R.V.R., Caster Operator
I must question your priorities...
--12F, Caster Operator
Archive File 2
[First Record] Leizi's official background is enough to keep the entirety of Rhodes Island awake at night. To be honest, the whole reason Rhodes Island is able to survive the tempestuous conflicts among various city-states is that in addition to the confidentiality and necessity of our line of work, maintaining political neutrality is essential. This is accomplished by balancing the benefits afforded to different city-states, negotiating with government representatives, and trading favors - and although these actions are necessary for the survival of Rhodes Island, the less we have to do, the better. An empire's government officials appearing on board Rhodes Island's ship, regardless of their position or rank, is almost always a dangerous matter. The fact that she even requested a long-term stay cannot possibly spell out good news for us.
Archive File 3
[Fourth Record]
Dobermann suddenly told me that Leizi had actually already been on board for three months. I took the news calmly, about as calmly as a someone trying to disarm a time bomb that would explode and take out half of the entire city in just three seconds being told that their daughter had just run away from Columbia's terminally ill Ursine military police.
Not disclosing an operator's background is just ignoring the problem, but hiding it from the entire ship is just ludicrous. No amount of paper can contain a fire, and no matter who made this decision, this is definitely a bad move.
Someone with years of intensive training, representing a major political playmaker, is now walking around freely on the ship... The grim reaper would not lie to you when asked why it has come, but this woman would not leak a hint of why she's here even if starved for three days. What are we supposed to do?
What?! She even applied to join an operational squad? And it was approved?!
Ughh... My stomach hurts and I want to resign from the HR Department and go home.
Dobermann's smiling at me with a look of resignation on her face. Whatever, how odd that a she can smile like that at a time like this.
Archive File 4
[Sixth Record]
We consider ourselves lucky.
Some Operators, such as Skadi or Shining, don't seem to care at all about this issue. The fact that they can focus on their goals and practically ignore all the rest of the background noise is good for their work.
Some others are concerned, but are just keeping silent about the matter. For example, Ansel brought up the issue several times, but decided against it each time and left after dropping off some snacks. They've struck a good balance between curiosity and their sense of responsibility.
Or, they simply don't know anything about it. I once witnessed Cuora getting lost and ending up in front of Leizi's dorm, only to have dinner with her before being sent back to Block A. Cuora will recount how they had four main dishes that night as well as a soup, concluding that Leizi is a very nice person, end of story.
Yet another type is those who have already been bound up and silenced, not even uttering a word about the matter even if tortured. Yesterday, I caught Blaze slacking off while I was on duty. Even though this time it was basically just bureaucratic busywork, and Blaze tends to use this time to get some rest and relaxation, she actually ran over to the intelligence room to go over files with the person who complains most often about her work ethic - Leizi. Amiya, who was standing at the doorway, even vouched for them before apologizing to me and pushing me out. She still had that faint smile as she waved me goodbye.
Some of us are definitely going crazy, and I've begun to suspect that it's actually me. Having that said, this proves that in addition to gathering data, Leizi has a vested interest in 'maintaining amicable relationships with her targets.' While it's true that she hasn't done anything yet, she also has been concealing her whereabouts from the rest of the world.
At first, I interpreted her application for long-term board as a form of rhetoric. In that regard, I admit I was in the wrong. It's just that to write this whole thing off as 'improving relationships' is far too suspicious.
How ironic. Concealment and deceit have turned into a method of expressing trust, and turning a blind eye in order to coexist together has become the new norm.
Fortunately, the great powers have not turned their gaze upon Rhodes Island just yet, a neglect which has already saved us several times.
Of course, if she was trying to spy on us, it would be stupid to walk in with an official state-sponsored identity. But that is precisely why we cannot rule out the possibility, and must do our best to maintain confidentiality and control the information going out.
To be honest, she is very good at her job. A pity that she is not one of our Operators.
I can actually make some inferences about what happened to her before, and it's entirely understandable why she seems to be in a rather odd state.
Perhaps now, the only proof of her true self is that tone of voice, and her golden locks that flow like electricity. I believe that she is in a self-imposed exile as a result of this case.
No matter where you are, there is a price to be paid for being selfless. If you fully dive into this cause, you will also give up your future. However, now that I think about it, surely the Central Judicial Office has no shortage of such personnel?
I admire her courage and perseverance fleeing here by herself. That would be a reason to shelter her even if she didn't pull her weight.
The hardships that she must endure from here on out, and the path that she must take, may yet be unknown to her still. No, I'm sure she knows full well, but simply has chosen not to act upon it.
Some people believe that those who work in the judiciary have a strong moral compass, and everyone can see that on display. In Leizi's case, she readily apologizes if she is wrong, and never toots her horn when she is right. You will never be able to get someone like her to stop bowing her head. It's a part of who she is.
Despite her many virtues, a glaring blemish is her attitude towards the Infected. By the looks of things, this is not something that can be changed in a short time.
However, just as day and night eventually blend together, I trust that a day will come when she understands the plight of the Infected. After all, she needs our help as well. I heard that Leizi spoke of a certain time in Yan, or a certain season... something involving the spring's first roar of thunder. The spring thunder is supposed to penetrate the darkness of the long winter.
I'll look after her, provided I don't get pissed off to all hell by those who are keenly interested in her personal belongings, like Haze and Rope.
Promotion Record
'What the hell is this?'
'Four bloody murders and four eras, three children and three clues, two clans and two factions, one master at one time, no outcomes and no consequences.'
'**, what is this pretentious load of bull? I can't make sense of a single word.'
'From the records I have on hand, I see that you two both share the same date of birth.'
'So what? Can you prove anything? Are you saying that you were convicted over this thing?'
'Your father was the third bloody murder.'
'...Tell me what you know. Everything. Hurry.'
'Spit it out, don't try to fool me! ...Get to the point. Tell me everything that you know. You are the only one of the children born during that time that I have access to.'
Stats
- HP364th of 4551,443
- ATK185th of 455635
- DEF376th of 455119
- RES25th of 45220
- Block1
- DP cost418th of 44632
- Redeploy70s
- Attack interval352nd of 4552.3s
At Elite 2, level 80, before trust, potentials and modules. Each bar is measured against the highest value in the Arknights roster, and the place is out of every character with that stat, lowest first for DP cost, Redeploy and Attack interval.
By promotion
- Elite 0 Lv. 1HP: 590ATK: 295DEF: 47RES: 10Block: 1DP: 29Redeploy: 70Interval: 2.3
- Elite 0 Lv. 50HP: 843ATK: 411DEF: 72RES: 10Block: 1DP: 29Redeploy: 70Interval: 2.3
- Elite 1 Lv. 70HP: 1096ATK: 527DEF: 99RES: 15Block: 1DP: 32Redeploy: 70Interval: 2.3
- Elite 2 Lv. 80HP: 1443ATK: 635DEF: 119RES: 20Block: 1DP: 32Redeploy: 70Interval: 2.3
Base values before trust, potentials and modules. Full trust adds ATK +75.
Trait
- Attacks deal Arts damage and jump between 3 enemies. Each jump deals 15% less damage and inflicts a brief Slow (Upgraded after reaching Elite 2)
- Elite 2
- Attacks deal Arts damage and jump between 4 enemies. Each jump deals 15% less damage and inflicts a brief Slow
Skills
2
ATK Up γ
Manual trigger · Auto recovery · Unlocks at Elite 0LevelATK +100%
- SP cost
- 30
- Initial SP
- 15
- Duration
- 30s

Thunderclap
Manual trigger · Auto recovery · Unlocks at Elite 1LevelATK +150%, and attacks no longer deal reduced damage on subsequent targets
- SP cost
- 80
- Initial SP
- 50
- Duration
- 35s
Talents
1Unobstructed Flow
- Elite 1
- Increases ATK to 110% when attacking unblocked enemies
- Elite 1 · Potential 5
- Increases ATK to 113% (+3%) when attacking unblocked enemies
- Elite 2
- Increases ATK to 120% when attacking unblocked enemies
- Elite 2 · Potential 5
- Increases ATK to 123% (+3%) when attacking unblocked enemies
Potentials
- Potential 2
- DP Cost -1
- Potential 3
- Redeployment Time -4 sec
- Potential 4
- ATK +28
- Potential 5
- Improves Talent
- Potential 6
- DP Cost -1
Modules
1
'All the Thunderlight' (CHA-X)
Unlocks at Elite 2 Lv. 50StageStatsTraitTalent- Stage 1Stats: HP +80, ATK +55Trait: Attacks deal Arts damage and jump between 4 enemies. Each jump deals 10% less damage and inflicts a short Slow
- Stage 2Stats: HP +95, ATK +65Trait: Attacks deal Arts damage and jump between 4 enemies. Each jump deals 10% less damage and inflicts a short SlowTalent: Increases ATK to 123% and recover 1 SP when attacking unblocked enemies
- Stage 3Stats: HP +105, ATK +75Trait: Attacks deal Arts damage and jump between 4 enemies. Each jump deals 10% less damage and inflicts a short SlowTalent: Increases ATK to 126% and recover 1 SP when attacking unblocked enemies
To unlock
- Defeat a total of 50 enemies with Leizi's skill Thunderclap (Leizi cannot be a Support Unit)
- Clear Main Theme S3-6 with a 3-star rating; You must deploy your own Leizi, and have Leizi defeat at least 1 Butcher
Module record
In younger years, was Lei Fa assiduously studied, scriptures and records committed to heart.
Then when called, bolts did not heed; when beckoned, bolts did not come.
In teenage years, progress was devoted day and night, and began awareness words lay outside of lines, within speech laid invisible speech.
A hand waved for arcs to spark, crackling to the ears.
At twenty and two, once daily, were chanted mnemonic and creed to satisfaction.
Lightning could be drawn, thunder could be righted.
Approaching thirty, the Way was nature, essences mighty yet held concealed.
Dispelled was malice and rid was evil, unpardoned were the guilty.
Spake the teacher: 'Satisfactory.'
Thereupon was granted a fine pair of crystals, with limpid lightning filled, in pallid thunder coated, as though the sense it would shatter and roar.
Spake the teacher: 'As Minister of the Central Judicial Office, this ceremony is held. Now I grant thee these crystals, and thou shalt name them.'
Young and ambitious were thoughts, diligent in studied creed, only wishing to command the five thunders, to cower the wicked.
Yet sensed was the realm's boundlessness, the night endless still, levin rolling, a need to notice all the world's difficulties.
Thus she replied: 'All the Thunderlight.'
Base skills
2
Picky
Control Center · Elite 0When this Operator is assigned to the Control Center, slightly increases the likelihood of obtaining Clues corresponding to the factions of Operators assigned to the Reception Room, but also increases the Morale consumption of Operators assigned to the Control Center by +0.5

Discernment
Control Center · Elite 2When this Operator is assigned to the Control Center, slightly increases the likelihood of obtaining Clues corresponding to the factions of Operators assigned to the Reception Room
Outfits
3
Elite 1
Default Outfit
Art by 竜崎いち

Elite 2
Default Outfit
Art by 竜崎いち

The Archivist and Her Pilgrimage
Achievement Star/III
Art by 竜崎いち
Store
Voice lines
38Show all 38 lines
- Appointed as Assistant
- Look carefully. Sort the files by type, then deadline and prioritization. Put urgent ones on top, others behind. That's the most efficient organization method. Wait... I seem to have inadvertently done all the paperwork. This was supposed to be your job, right?
- Talk 1
- I've checked all files related to the elite operator, Blaze. There are no records of her real name, or place and date of birth. Don't tell me you don't know. Aren't you supposed to be one of the leaders here? You really have no idea? How...? What am I supposed to do here...? Ahem, I apologize for the inconvenience and distress, Doctor. I shouldn't have accused you.
- Talk 2
- You don't need to be so cautious around me. Other than the case at hand, I'll treat everything else on the ship as if it never happened. But if there is another explosion in the corridor outside my room, I'll make the perpetrator's hair stand on end for two straight weeks!
- Talk 3
- 'Assume the responsibilities for the post to which you are assigned.' Doctor, as one of the leaders of Rhodes Island, it is not your duty to... Huh? My hair's standing up again? Hold on! G-Give me a moment to fix my look first! Strange, I thought I had discharged all the static electricity this morning...
- Talk after Promotion 1
- Even today, I can vaguely recall the first time I saw you in Lungmen. You, Blaze, and Ch'en... are all holding onto countless secrets... and I will uncover them one by one. It's only fair to exchange secrets? Wha-What? You... No! It's t-too early for that...!
- Talk after Promotion 2
- Ask me anything. Only when you speak up can I decide what is just and unjust, and whether I wish to take action. I need to take my position into consideration? This has nothing to do with that. The Censorate, Judicial Review Office, Department of Discipline and Supervision... They are nothing but institutions. Law is only proven just when enforced by man.
- Talk after Trust Increase 1
- Rhodes Island's ideals conflict with my beliefs. However, I do recognize the necessity of agreeing to disagree while seeking common ground... So goes the necessity of providing assistance in exchange for information.
- Talk after Trust Increase 2
- No matter where I am, the electricity flowing through my body never ceases. The thunderlight is a symbol of justice. It drives me forward, sometimes even waking me up at night... Hm? There's another complaint that I've damaged an AC unit? Nonsense! Lies and slander! I don't even need to use a remote to turn on the AC, let alone touch it!
- Talk after Trust Increase 3
- Blaze was implicated in a major case. All evidence has been deliberately destroyed. However, there remain a few 'coincidences' surrounding persons and times. Not many, but enough to raise doubts, and enough for me to suspect connections between several different cases. This has nothing to do with you, but you should take adequate precaution. All I can do is offer you a fair warning.
- Idle
- You can't even properly manage your physical condition. How lax and irresponsible! Sprawling on desk like this, were you expecting me to put a blanket over you? There won't be a next time.
- Onboard
- I've signed and obtained an investigation authorization with your company. Don't worry, this is me acting solely as an individual. You may call me Leizi, if you wish. Who am I? Have we met before? Are you serious?!
- Watching Battle Record
- I see, this is a completely different principle from military training.
- Promotion 1
- Promotion? I suppose this is how you handle career advancement? The promotion process at Rhodes Island seems to differ from that of common private companies…
- Promotion 2
- I, Leizi, am the bearer of the thunderlight and the law, the vision and reach of Great Yan. My philosophy does not align with that of Rhodes Island, and I have no intention of bridging the gap between the Infected and non-Infected. However, we may now fight side by side against our enemies!
- Added to Squad
- With my own eyes, I shall judge what power Rhodes Island possesses.
- Appointed as Squad Leader
- I can do that, yes, albeit at a price.
- Depart
- Heed my orders!
- Begin Operation
- I have no interest in the identity of my enemy.
- Selecting Operator 1
- In place.
- Selecting Operator 2
- It may be done.
- Deployment 1
- As you command.
- Deployment 2
- Hark! The thunder rumbles!
- In Battle 1
- O great thunderlight, strike!
- In Battle 2
- No mercy for transgression! Lightning shall judge!
- In Battle 3
- Pure thunder calls down justice! Shatter all falsehoods in all realms!
- In Battle 4
- The essence of Lei Fa... is my will becoming one with this great land.
- 4-star Result
- Well done. As my standards are quite high, you should be proud of yourself.
- 3-star Result
- Not enough. You can do even better. Do not rest upon your laurels, you have the ability to strive for greater heights.
- Sub 3-star Result
- Impossible... what happened? How can this be?
- Operation Failure
- Such humiliation...! Begone, you! Return and reflect! I will hold back the enemies, leave!
- Assigned to Facility
- Where's the power socket?
- Tap
- How rude!
- Trust Tap
- Oh... did that hurt? Please be mindful of the static electricity around me.
- Title
- Arknights.
- New Year's blessing
- A year's planning is done in the spring, and though it may not be spring yet, do you simply plan to idly loaf around at a new year's outset? You should still sharpen yourself on holiday. As the saying goes, the man who catches fins for one day then rests for two, will find himself slothful with dust on his shoe. Hm...? Two, four, six, eight... Hey! If you keep slacking I'll have finished annotating these documents myself!
- Greeting
- Work dutifully, Doctor.
- Birthday
- Ahem. Judicial Review Office Censor Leizi expresses good wishes on the Dr.{@nickname}'s birthday. May your life be ever warm as spring, and of peace and prosperity... Heeeey, I'm being serious here! Don't laugh!
- Anniversary Celebration
- With the mystery I'm investigating still an open question, I cannot unreservedly trust Rhodes Island. However, in my days lodging here, I've witnessed physicians benevolent and adroit, warriors heroic and unyielding. Even if our beliefs differ, I still have considerable respect for your investments and efforts.
Upgrade costs
Open in the plannerPromotion
- Elite 1
Caster Chip ×4
Device ×3
Polyester ×3
LMD ×20,000 - Elite 2
Caster Dualchip ×3
RMA70-24 ×7
Coagulating Gel ×13
LMD ×120,000
Skill levels
- Lv. 2
Skill Summary - 1 ×4 - Lv. 3
Skill Summary - 1 ×4
Damaged Device ×4 - Lv. 4
Skill Summary - 2 ×6
Orirock Cube ×4 - Lv. 5
Skill Summary - 2 ×6
Sugar ×5 - Lv. 6
Skill Summary - 2 ×6
Coagulating Gel ×4 - Lv. 7
Skill Summary - 3 ×6
Integrated Device ×2
Coagulating Gel ×3
Mastery: ATK Up γ
- M1
Skill Summary - 3 ×5
Optimized Device ×2
Oriron Cluster ×3 - M2
Skill Summary - 3 ×6
Optimized Device ×2
Oriron Block ×5 - M3
Skill Summary - 3 ×10
Bipolar Nanoflake ×4
Oriron Block ×3
Mastery: Thunderclap
- M1
Skill Summary - 3 ×5
White Horse Kohl ×3
Aketon ×5 - M2
Skill Summary - 3 ×6
White Horse Kohl ×3
Keton Colloid ×5 - M3
Skill Summary - 3 ×10
Polymerization Preparation ×4
RMA70-24 ×4
Module: 'All the Thunderlight' (CHA-X)
- Stage 1
Module Data Block ×2
Incandescent Alloy Block ×3
LMD ×40,000 - Stage 2
Module Data Block ×2
Data Supplement Stick ×20
Optimized Device ×4
LMD ×50,000 - Stage 3
Module Data Block ×2
Data Supplement Instrument ×8
Refined Solvent ×5
LMD ×60,000
How to get Leizi
Recruitment & Headhunting
Art















