
Medic
Warfarin
★★★★★
Rhodes Island
Introduction
Warfarin is a 5-star character in Arknights. Warfarin's class is Medic. Faction: Rhodes Island.
On the combined Arknights tier list Warfarin is B tier, 73rd of the 410 characters ranked, from where 3 community tier lists put Warfarin.
What Warfarin does
A
Medic who doubles as a buffer.
Unstable Plasma gives Warfarin and a random ally in range 90% ATK for 15 seconds, at a cost of 3% Max HP per second for both. Kills in range feed 2 SP to Warfarin and another ally, and
Emergency Triage stores four big heals for allies under 50% HP.
Profile
Warfarin is a female Sarkaz. Her birthday is Jun. 27, and she stands 157cm tall. Warfarin is voiced by Gelin Tian in Chinese, Lindsay Morton in English, Manaka Iwami in Japanese, and Shin Song-yi in Korean. 时辰 drew her.
Stories
9Basic Info
[Code Name] Warfarin
[Gender] Female
[Combat Experience] 10 years
[Place of Birth] Kazdel
[Date of Birth] Jun. 27
[Race] Sarkaz
[Height] 157cm
[Infection Status]
Medical tests have confirmed that no infection is present.
Physical Exam
[Physical Strength] Standard
[Mobility] Standard
[Physical Resilience] Standard
[Tactical Acumen] Excellent
[Combat Skill] Standard
[Originium Arts Assimilation] Excellent
Profile
A senior figure in the Rhodes Island leadership, Warfarin's background remains unclear.
She is the founder and administrator of the Rhodes Island Blood Bank, and very accomplished in the medical field. She laid the foundation of Rhodes Island's medical system with Dr. Kal'tsit.
Clinical Analysis
Imaging tests on this Operator show clear outlines of internal organs, with no abnormal dark spots or shadows. No unusual traces of Originium particles present in the circulatory system, no signs of infection, confirming this operator as uninfected.
[Cell-Originium Assimilation] 0%
Subject shows no symptoms of Oripathy.
[Blood Originium-Crystal Density] 0.12u/L
Subject in normal condition, no further examination necessary.
Archive File 1
It's hard to imagine that this delicate vampire lady, whose petite figure hardly commands respect, actually has the longest history with Rhodes Island.
She doesn't mind being treated beneath her age and status, but Warfarin absolutely won't tolerate anyone straying from her prescribed course of treatment.
Her age is no secret, but the number she gives has never failed to elicit a gasp.
Archive File 2
Vampires are feared even among the often demonized Sarkaz race.
They stalk the night, feed on the blood of men, women, and children. They kill, and do who knows what other unspeakably evil things... Such is the legend to which Miss Warfarin is known to matter-of-factly reply, 'That's most of my kin, yes.'
Of course, everyone at Rhodes Island knows Warfarin isn't anything like that.
We know she does indeed love the taste of blood, but this is proof of her remarkable self-control, since she has never taken advantage of any of her patients.
As she says, she can tell the difference between a patient and dinner.
Archive File 3
The Doctor's importance to Rhodes Island is well understood, but it has a special meaning to Warfarin.
For reasons even Warfarin herself can't explain, she is nigh-fatally attracted to the Doctor's blood. Operators have reported her frequent attempts at, shall we say, rather unladylike behavior towards the Doctor, forcing a restraining order from Dr. Kal'tsit.
Solving this puzzle will perhaps lift some of the cloud of mystery that surrounds the Doctor. But unfortunately, it continues to confound investigation.
Archive File 4
Although everyone knows Warfarin is a senior executive with incredible medical expertise, very few Operators honestly respect her. The problem goes beyond her physical appearance.
It may have to do with her vampiric heritage, or the fact she is very reclusive. But also, Warfarin has always been light on morals. She does whatever ideas pop into her head without concern for the ethics or even rationality of the idea. Several Operators reportedly experienced sudden, unexplained blackouts in the early days, only to wake up on a surgical table with sinister laughter ringing in their ears.
Warfarin felt she had done nothing wrong, and even Dr. Kal'tsit couldn't convince her, leading to several of Warfarin's more outlandish behaviors being banned by the company.
She has since cleaned up her act, but still occasionally 'scars' an Operator, making it hard for them to trust or respect her.
In the end, she still doesn't think she's done anything wrong.
Promotion Record
Several authoritative medical books in recent decades were penned by an author under the pseudonym 'Blood.'
The author is a legendary figure in the medical field, known for thorough application of material with unrivaled expertise. Blood's every publication took the medical world by storm.
Alas, no one knows whether Blood is a man or woman, an individual or a group, discussed only as 'Mr. Blood.'
Of course, one only has to look at the comprehensive collection of Blood's work in Warfarin's room to correctly guess that she is the one and only 'Mr. Blood.'
She originally used that name to hide her vampiric identity, but now she thinks it's funny to see her pseudonym on published medical books.
Stats
- HP333rd of 4551,520
- ATK304th of 455505
- DEF342nd of 455125
- RES0
- Block1
- DP cost226th of 44619
- Redeploy70s
- Attack interval387th of 4552.85s
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: 805ATK: 172DEF: 55RES: 0Block: 1DP: 17Redeploy: 70Interval: 2.85
- Elite 0 Lv. 50HP: 1135ATK: 282DEF: 80RES: 0Block: 1DP: 17Redeploy: 70Interval: 2.85
- Elite 1 Lv. 70HP: 1368ATK: 404DEF: 100RES: 0Block: 1DP: 19Redeploy: 70Interval: 2.85
- Elite 2 Lv. 80HP: 1520ATK: 505DEF: 125RES: 0Block: 1DP: 19Redeploy: 70Interval: 2.85
Base values before trust, potentials and modules. Full trust adds ATK +75.
Trait
- Restores the HP of allies
Skills
2
Emergency Triage
Auto trigger · Offensive recovery · Unlocks at Elite 0LevelThe next heal restores an additional 25% of its target's Max HP Only available when the target's HP is lower than 50%; Can store 4 charge(s)
- SP cost
- 4
- Initial SP
- 0
- Charges
- 4

Unstable Plasma
Manual trigger · Auto recovery · Unlocks at Elite 1LevelWarfarin and a random ally within range obtain the following status: ATK +90% and loses 3% of Max HP every second, lasting for 15 seconds
- SP cost
- 60
- Initial SP
- 50
Talents
1Blood Sample Recycle
- Elite 1
- Restores 1 Skill Point to this Operator and a random ally within range when an enemy within range is killed
- Elite 2
- Restores 2 Skill Points to this Operator and a random ally within range when an enemy within range is killed
Potentials
- Potential 2
- DP Cost -1
- Potential 3
- Redeployment Time -4 sec
- Potential 4
- ATK +27
- Potential 5
- Redeployment Time -6 sec
- Potential 6
- DP Cost -1
Modules
1
Emergency Reserves (PHY-X)
Unlocks at Elite 2 Lv. 50StageStatsTraitTalent- Stage 1Stats: HP +40, ATK +30Trait: When healing allied units with less than 50% HP, increases heal amount by 15%
- Stage 2Stats: HP +65, ATK +40Trait: When healing allied units with less than 50% HP, increases heal amount by 15%Talent: Restores 2 SP to this Operator and a random ally within range when an enemy within range is killed. Restore 1 more SP if the enemy was an elite or boss
- Stage 3Stats: HP +80, ATK +47Trait: When healing allied units with less than 50% HP, increases heal amount by 15%Talent: Restores 2 SP to this Operator and a random ally within range when an enemy within range is killed. Restore 2 more SP if the enemy was an elite or boss
To unlock
- During battle, have Warfarin use Unstable Plasma a total of 12 times (excluding Support Units)
- Clear Main Theme 2-10 with a 3-star rating using a squad of at most 7 units (including Support Units); A non-Support Warfarin must be in the squad and deployed, and only Guard Operators are allowed for the remaining units
Module record
[An Accountable Answering of Assorted Queries from Rhodes Island Operators on the Harvesting of Blood Bank Samples]
The elements of Rhodes Island's physical examinations are made available to all examinees, and are added or removed as per the examinee's wishes. All procedures and processes are completely transparent, and no part of them is in any way deceptive.
We keep strict confidentiality on patient information, and our independently founded blood bank has not, to this day, lost a single blood sample. Yes, not once.
Rhodes Island has confidence that we keep these samples safe under comprehensive surveillance, and it is only during treatment of disease that... what? Who's the supervisor of the bank?
Ahem. That would be Dr. Warfarin, one of Rhodes Island's most longstanding members.
No one could ever steal blood samples from under a Vampire's nose. I believe that it is precisely because Dr. Warfarin serves as its supervisor that we can confidently conclude that Rhodes Island's blood bank is not under any external threat.
[Extract from Warfarin's diary]
Blood tests on the new operators finished today. Haven't we had a few too many new ops lately? Feline, Perro, Liberi, Sarkaz... one lone doctor drawing all these vials from all these people... At first I was stirring a little at the scent, but by the end I was almost sick of the sight of it.
Kal'tsit really needs to laud me for my paranormal self-control. Forget all the young breeds running amok out there these days... Not even the old guard of our race could match my endurance.
...Forget that, actually. Comparing yourself to them at anything is stupid.
Back to the topic at hand. Collecting a few extra samples while I'm off the clock should be fine, right? That Skadi op, not to mention Specter and Gladiia... it's not every day we have so many gathered aboard. It's too good a chance to pass up!
Also, the Doctor.
Oh, the Doctor. Just a glance makes my researcher's heart tickle. It's so strange... where does that scent come from? Why am I so strongly drawn to it? Do other Vampires have the same reaction? Does Closure... Actually, never mind Closure. She's an exception.
If my judgment is correct, the Doctor's body should be hiding some kind of secret. I bet Kal'tsit knows it, but she keeps tight lips, and she wouldn't want anyone else to go digging.
Oh, that Kal'tsit! Kal'tsit! How can you dangle a chance to bare the truth in front of me like this, then forbid me from looking into it?
Come to think of it, she seems less uptight lately. What if I just... found a chance and gave it a shot?
Hmm... I'll need to plan this one out...
Base skills
2
Medic Expert α
Training Room · Elite 0When this Operator is assigned to be the Trainer in the Training Room, Medic Operators' Specialization training speed +30%

Medic Expert β
Training Room · Elite 2When this Operator is assigned to be the Trainer in the Training Room, Medic Operators' Specialization training speed +50%
Outfits
4
Elite 1
Default Outfit
Art by 时辰

Elite 2
Default Outfit
Art by 时辰

Holiday HD31
Coral Coast/VII
Art by 时辰
Event Reward

the feast
Witch Feast
Art by 时辰
Store
Voice lines
38Show all 38 lines
- Appointed as Assistant
- Doctor, Dr. Kal'tsit sent me to take a blood sample from you. We can chat as I'm getting the needle ready.
- Talk 1
- Can I control the urge to feed, you ask? How dare you underestimate me! I'm a trained professional. Of course I can tell patients from food!
- Talk 2
- It's my job to track blood indicators for all our operators, even if they aren't exactly happy about it, huh...? These blood bags? They're samples, of course! What were you thinking!?
- Talk 3
- There's another one of my kind here. And she's an... engineer? Hm…maybe she likes the smell of machine oil more than blood?
- Talk after Promotion 1
- Why I chose to become a doctor? I can't say it was any sort of lofty calling. It's just that, you know, OUR kind... we don't exactly have the brightest prospects. But it turned out my skills were actually in surprisingly high demand, so... I just went with the flow.
- Talk after Promotion 2
- How do we fight the urge to feed? We actually have a course that helps us control our desires. And we've invented artificial blood, so we drink that if we need. We can be very resourceful, you know.
- Talk after Trust Increase 1
- This is the standard procedure. It's the same for everyone getting blood drawn. Don't move, Doctor. Ah... blood... your blood... it smells delicious... It's just… it's just… captivating...
- Talk after Trust Increase 2
- Replenishing saline solution! Changing filters! Sterilizing sand and charcoal canisters... all done! Doctor, you'd better keep your medical supplies well-maintained. As Dr. Kal'tsit said, when your kidneys give out, these machines are going to save your life... aw, come on, just kidding.
- Talk after Trust Increase 3
- Fine, fine, I'll come clean... I have tasted lots of blood of many different types from all different races. And I do enjoy the subtle differences in flavor, okay? In fact, the only type of blood I've never tasted is... yours, Doctor. Heheh...
- Idle
- Hm? So you still have time to sleep? I'm jealous.
- Onboard
- I am Warfarin, the blood-scientist-slash-doctor. Besides typical healing Arts, I also bring you specialized medical treatments, courtesy of my remarkable expertise in hematology and plentiful experience. Anyway, look forward to working with you.
- Watching Battle Record
- Hm, my work efficiency seems to have improved.
- Promotion 1
- Are you even listening? We're having trouble collecting rare blood types for the emergency blood bank. So, what? What did you say? A promotion? Now?
- Promotion 2
- This only means more work for me, right? Ha, I saw that a mile away! I'm an expert in this field after all. Don't worry, I am well prepared!
- Added to Squad
- Wait, I need to prepare my equipment first.
- Appointed as Squad Leader
- A leader reports only to you, right?
- Depart
- My equipment is ready. We can start any time.
- Begin Operation
- I don't have the leisure for enemy intel at the moment. Taking care of our operators has already occupied my whole schedule...
- Selecting Operator 1
- Go ahead.
- Selecting Operator 2
- Medical equipment set.
- Deployment 1
- Call for help immediately if you're injured!
- Deployment 2
- Commence treatment.
- In Battle 1
- Ready for blood transfusion!
- In Battle 2
- Get the hemostat!
- In Battle 3
- First aid here, take it!
- In Battle 4
- I'll be right there!
- 4-star Result
- It's really nerve-wracking being in the medic squad. Support troops are really under lots of pressure! Good thing I'm already used to it.
- 3-star Result
- The battlefield is a place of tragedy. I hope they come to understand this one day.
- Sub 3-star Result
- Forget about those fleeing enemies at the moment, our priority now is to help the injured.
- Operation Failure
- I am sorry, we've even ran out reserve medicine…
- Assigned to Facility
- I guess I'm more accustomed to figuring things out myself...
- Tap
- Huh? What are you doing?
- Trust Tap
- Doctor, isn't it almost time for your annual checkup?
- Title
- Arknights.
- New Year's blessing
- New Year's? My, the moment I turn around, another year passes. Time really does fly fast... Anyway, did you come on your own, Doctor? All alone? Good. And did you run into any other operators on the way...? That makes this easy, Doctor, let's test your blood. Oh, settle down, I'm just joking.
- Greeting
- Hello, Doctor.
- Birthday
- Apparently this confection is popular in Higashi. You get strawberry juice in a plasma bag with an IV drip as a straw, and the sensation of drinking it is macabre but completely novel! Want one, Doctor? What are you sniffing it so hard for? It's just strawberry, of course it is! There's no weird additives in it at all!
- Anniversary Celebration
- Look at how spry and active they all are. If only they could come back from field missions just as lively. It's a doctor's lot to worry, but some operators really don't know to cherish themselves. They don't fear me, so they don't listen. Maybe this calls for me to be a little more fearsome, like, Kal'tsit-style?
Upgrade costs
Open in the plannerPromotion
- Elite 1
Medic Chip ×4
Polyketon ×4
Sugar ×2
LMD ×20,000 - Elite 2
Medic Dualchip ×3
Optimized Device ×5
Sugar Pack ×17
LMD ×120,000
Skill levels
- Lv. 2
Skill Summary - 1 ×4 - Lv. 3
Skill Summary - 1 ×4
Diketon ×5 - Lv. 4
Skill Summary - 2 ×6
Device ×2 - Lv. 5
Skill Summary - 2 ×6
Orirock Cube ×8 - Lv. 6
Skill Summary - 2 ×6
RMA70-12 ×3 - Lv. 7
Skill Summary - 3 ×6
Orirock Cluster ×4
Integrated Device ×2
Mastery: Emergency Triage
- M1
Skill Summary - 3 ×5
Sugar Lump ×3
RMA70-12 ×3 - M2
Skill Summary - 3 ×6
Oriron Block ×3
Sugar Lump ×5 - M3
Skill Summary - 3 ×10
Bipolar Nanoflake ×4
Grindstone Pentahydrate ×4
Mastery: Unstable Plasma
- M1
Skill Summary - 3 ×5
Polyester Lump ×3
Orirock Cluster ×4 - M2
Skill Summary - 3 ×6
Keton Colloid ×3
Polyester Lump ×5 - M3
Skill Summary - 3 ×10
D32 Steel ×4
Optimized Device ×3
Module: Emergency Reserves (PHY-X)
- Stage 1
Module Data Block ×2
Manganese Trihydrate ×3
LMD ×40,000 - Stage 2
Module Data Block ×2
Data Supplement Stick ×20
White Horse Kohl ×4
LMD ×50,000 - Stage 3
Module Data Block ×2
Data Supplement Instrument ×8
Crystalline Circuit ×5
LMD ×60,000
How to get Warfarin
Recruitment & Headhunting
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