Caster of Okeanos

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Table of Contents


Max HP 12,250
HP Rank
Max ATK 8,671
ATK Rank
Base Atk1,445Base HP1,960
Max Atk 8,671 Max HP 12,250
Grail Atk 10,499 Grail HP 14,853
NP per Hit (%) 0.39%
NP when Attacked (%) 3%
Star Absorption 51
Star Generation per Hit 10.8%

Table of Contents

Servant Skills

Available from the start

Poisoned Food A

Inflicts Poison to all enemies (3 turns).
Decrease DEF for all enemies (3 turns).

Show Info
Poison Damage + 5005506006507007508008509001000
Defense - 10%11%12%13%14%15%16%17%18%20%
CD 7 7 7 7 7 6 6 6 6 5

Unlocks after 1st Ascension

Unlocks after 3rd Ascension

Class Skills

Territory Creation B

Increase your Arts Card effectiveness by 8%.

Item Construction A

Increase your Debuff Chance Rate by 10%.

Noble Phantasm

Metabole Piglets C

Deals damage to a single enemy.
Inflict Pigify on a single enemy (1 turn).
(Similar to Stun but only works on certain enemies.)


Decrease Critical Rate for a single enemy (3 turns).

Show Info/Video

Metabole Piglets

Forbidden Revelry Μεταβολικά Χοιρίδια (Metavoliká Choirídia)

Rank Classification Hit-Count
C Anti-Unit 5

Deals damage to a single enemy.
Inflict Pigify on a single enemy (1 turn).
(Similar to Stun but only works on certain enemies.)

Level 1 2 3 4 5
600% 800% 900% 950% 1000%
Overcharge Effect

Decrease Critical Rate for a single enemy (3 turns).

Charge 100% 200% 300% 400% 500%
10% 20% 30% 40% 50%

Assorted Info

ID 192
Cost 12
Gender Female
Growth Reverse S
Inst. Death Chance 34.50%
Damage Distribution Quick 16,33,51
Damage Distribution Arts 16,33,51
Damage Distribution Buster 33,67
Damage Distribution Extra 10,20,30,40
Damage Distribution NP 6,13,20,26,35

Attack / HP Growth

Stat Ratings

Interlude Quests

Quest Requirements Reward
Interlude 1
Chapter Completion: Salem

Ascension: 3

Bond: 5

✔ = Available ✖ = Unavailable

Ascension Materials


Skill Enhancement Materials

1 → 2 100,000
2 → 3 200,000
3 → 4 600,000
4 → 5 800,000
5 → 6 2,000,000
6 → 7 2,500,000
7 → 8 5,000,000
8 → 9 6,000,000
9 → 10 10,000,000

Total Materials Required


Costume Dress Materials

Costume Cost Materials
April Fool's 0

Bond CE

Bond Level 1 2 3 4 5 6 7 8 9 10
Bond Pts Req. 1,500 2,250 3,000 3,750 4,500 225,000 260,000 270,000 300,000 395,000
Falcon Witch's Banquet

When equipped on Caster of Okeanos,
Increase NP Gain by 10% for all allies while she is on the field.
Increase NP Strength by 10% for all allies while she is on the field.

Table of Contents


“I love you so much that I want to turn you into a piglet…...seriously.”

A witch of temptation who seems to be friendly and loving on the outside, Caster of Okeanos is notorious for turning the men abusing the hospitality of her islands into cute tiny piglets. On the battlefield, she is a damage dealer boasting an on-demand instant single target Buster NP, powerful utility through her unique Pigify status, and access to rare teamwide debuff cleansing.

Caster of Okeanos’s general gameplay revolves around her Noble Phantasm Metabole Piglets, a single-target NP which happens to Pigify its target, triggering a special stun effect for 1 turn. Caster of Okeanos is able to create this merry spectacle immediately through Rapid Words of Divine’s on-demand full 100% NP charge, a skill many can only dream of having. Tactically, Caster of Okeanos thus has great freedom regarding Craft Essence choices, which compensates significantly for her lack of steroids. Additionally, she can provide a decent amount of team support as well, either through Navication Advice’s party-wide debuff removal and Stargen buff, or through Poisoned Food’s AoE Defense Down and poison. 

However, the remaining aspects of Caster of Okeanos' kit are less glamorous. In return for the powerful Rapid Words of Divine/Metabole Piglets combo, her normal NP gain is nothing short of horrendous, with the only solace being her triple Arts deck. Furthermore, despite in practice having decent burst damage through powerful Craft Essences, her sustained damage is rather poor, partially because of the aforementioned NP gain, but also due to her lack of powerful steroids as well as the ever-present 0.9x Caster modifier. Finally, she has little to no survival capabilities, save for what damage is prevented through Pigification.

Thus, for Caster of Okeanos there is more than meets the eye at first glance. With the correct CE, NP Upgrades, and supports (i.e. Merlin), her lack of offense for veteran Masters is much less crippling, while the value and freedom brought by her instant NP and utilities become far more prominent.

Besides, the sight of enemies turning into piglets should be more than enough for Masters to perch her presence on the battlefield!


Instant NP and Craft Essence Flexibility

Aside from just providing easy access to her NP, Rapid Words of Divine also allows Caster of Okeanos to be more picky regarding her CEs. This advantage ensures access to her most optimal CE choices, something she desperately needs due to her questionable base damage. A prime example of this is her ability to either equip Event (Damage) CEs without a massive decrease in performance, or equip the monster that is the Black Grail.

Powerful Crowd Control NP

Metabole Piglet’s Pigify effect is effective against normal Servants, who account for most of the in-game boss fights. The capability to perform what is essentially an instant, guaranteed stun (or two of them back-to-back) is a very powerful tool for some difficult quests, especially those requiring the team to stall a high-damaging boss. 

On-Demand Utility and Support

Caster of Okeanos possesses various useful utility and support tools, ranging from her NP’s Pigify, to Navigation Advice’s debuff removal and star generation, to the extra damage provided by Poisoned Food’s Defense Down debuff. She is able to access all of these at a whim, making her a very effective Order Change Servant to negate various gimmicks, boost damage a little or shut down the enemy for a turn or two.


Horrendous Base NP Gain

Despite having the benefit of 3 Arts cards and Territory Creation, Caster of Okeanos’ base NP gain is frankly rather pathetic. This weakness is further exacerbated by her Buster-type NP preventing any NP refunding or improving her NP Gain via an Arts card first bonus. Masters need to rely on Arts chains to (re-)charge her NP.

Low Sustained Damage

With middling attack stats, a small single teamwide Defense Down, and the 0.9x Caster modifier, Caster of Okeanos' NP is her only source of meaningful damage. Sadly, her base NP damage is among the lowest of her rarity if Masters do not compensate her lack of steroids with powerful CEs, and she is also unable to spam it either due to her low NP gain. As such, she falters in stages requiring constant high damage output.

Low Durability

While Metabole Piglets’ crowd control effect provides some semblance of defensive measure, Caster of Okeanos otherwise lacks any other sort of survival-oriented tool, which forces her to rely on external support for survival in more difficult fights. 

Level Up Skill Recommendation

Skill Priority
Rapid Words of Divine B

Increase own NP Gauge.

Show Info
NP + 60%66%72%78%84%90%96%102%108%120%
CD 9 9 9 9 9 8 8 8 8 7
Poisoned Food A

Inflicts Poison to all enemies (3 turns).
Decrease DEF for all enemies (3 turns).

Show Info
Poison Damage + 5005506006507007508008509001000
Defense - 10%11%12%13%14%15%16%17%18%20%
CD 7 7 7 7 7 6 6 6 6 5
Navigation Advice A

Increase Critical Star Drop Rate for all allies (3 turns).
Remove Debuffs for all allies.

Show Info
Star Rate + 30%32%34%36%38%40%42%44%46%50%
CD 8 8 8 8 8 7 7 7 7 6

Among Caster of Okeanos’ three skills, Rapid Words is by far the most important to level, and it is recommended to raise it to level 5 or 8 (with / without Merlin, respectively) as soon as possible. Her second skill should also be leveled, to maximize the amount of damage she can dish out especially due to how it scales with any CEs. Her third, in contrast, scales poorly with additional levels, and can generally be left at a lower level. 

  • Rapid Words of Divine B is the crux of Caster of Okeanos' skill set, and should be raised to at least level 8 from the get go in order to hit 100% NP charge benchmark. The remaining two levels can generally be ignored, though the additional cooldown reduction gained on level 10 may prove useful in more intense fights. Level this first.

  • Poisoned Food A reduces the enemies’ defense and poisons them for 3 turns. While the poison is little more than a bonus, the Defense Down brings a reasonable benefit to Caster of Okeanos as well as her allies. This skill should ideally be leveled second after Rapid Words of Divine.

  • The main draw of Navigation Advice A is its party-wide debuff removal, the effectiveness of which doesn’t scale with additional levels. Meanwhile, its star generation buff is situational at best and has only minor scaling per level, leaving it as the last priority in terms of leveling.

Craft Essence Recommendation

In general, Caster of Okeanos' CE choices revolve around either boosting her damage via NP Damage Up, or increasing her NP frequency via Starting NP Gauge. Buster Performance Up effects can also be used in combination with the aforementioned effects, though these modifiers are typically weaker than NP Damage. Lastly, if Caster of Okeanos is used as an Order Change Servant, Masters can boost her support by using CEs with On Entry, On Death, or Taunt effects.

  • The Black Grail / Hero Elly’s Adventure / Heaven’s Feel: These CEs provide the largest raw damage increase overall and are best used with well-supported teams.

  • Kaleidoscope / The Imaginary Element / Dragon’s Meridian: The use of these CEs helps Caster of Okeanos fire several NPs in succession very early on, excellent for stages with multiple lower-health bosses, low HP Break bars, or when disables are required.

  • Aerial Drive / Holy Night Supper / Golden Sumo: Boulder Tournament: Hybrid Starting NP Gauge CEs with secondary offensive effects can be used in place of the above options, especially when NP charging supports are abundant.

  • Golden Captures the Carp / Ox-Demon King: These CEs should be used when Order Change strategies are employed, allowing Caster of Okeanos to provide additional offense for the team from the moment she steps onto the battlefield.

Table of Contents

Other Info

Release Date 12/2/2019
AKA/Alias/Nicknames Okeanos Caster, Circe
Country/Place of Origin Greece
Illustrator Hidari
Seiyuu (CV) Akaneya Himika
Series Fate/Grand Order



Valentine's CE


Non-Limited - Available in the general summoning pool.

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