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April Fool's
Chaotic Evil
Max HP 6,604
HP Rank
Max ATK 6,037
ATK Rank
Base Atk1,097Base HP1,320
Max Atk 6,037 Max HP 6,604
Grail Atk 9,381 Grail HP 10,181
NP per Hit (%) 0.68%
NP when Attacked (%) 5%
Star Absorption 9
Star Generation per Hit 4.9%

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Servant Skills

Monstrous Strength A

Increases own attack for 3 turns.

Show Info
Attack + 10%12%14%16%18%20%22%24%26%30%
CD 7 7 7 7 7 6 6 6 6 5

Available from the start

Natural Demon A++

Increases own attack debuff resistance for 3 turns.
Increases own defense for 3 turns.

Show Info
Debuff Res + 50%55%60%65%70%75%80%85%90%100%
Defense + 20%22%24%26%28%30%32%34%36%40%
CD 7 7 7 7 7 6 6 6 6 5

Unlocks after 1st Ascension

Labrys of the Abyss C

Increases own critical star absorption for 1 turn.
Increases own Buster performance for 1 turn.

Show Info
Absorption + 3000%3300%3600%3900%4200%4500%4800%5100%5400%6000%
Buster + 20%21%22%23%24%25%26%27%28%30%
CD 7 7 7 7 7 6 6 6 6 5

Unlocks after Rank Up Quest

Class Skills

Madness Enhancement B

Increase your Buster Card effectiveness by 8%.

Noble Phantasm

Chaos Labyrinth EX

Decrease ATK for all enemies (6 turns).


Decrease DEF for all enemies (6 turns).

Show Info

Chaos Labyrinth

Eternally Unchanging Labyrinth

Rank Classification Hit-Count
EX Maze

Decrease ATK for all enemies (6 turns).

Level 1 2 3 4 5
10% 15% 17.5% 18.8% 20%
Overcharge Effect

Decrease DEF for all enemies (6 turns).

Charge 100% 200% 300% 400% 500%
10% 15% 20% 25% 30%
Chaos Labyrinth (Upgrade 1) 'EX'

Upgrade via Interlude Quest 1.

Decrease ATK for all enemies (6 turns).
Further decrease ATK and DEF for all enemies by 40% (1 turn).


Decrease DEF for all enemies (6 turns).

Show Info

Chaos Labyrinth (Upgrade 1)

Eternally Unchanging Labyrinth

Rank Classification Hit-Count
'EX' Maze
Effect Decrease ATK for all enemies (6 turns).
Further decrease ATK and DEF for all enemies by 40% (1 turn).
Level 1 2 3 4 5
10% 15% 17.5% 18.8% 20%
40% 40% 40% 40% 40%
40% 40% 40% 40% 40%
Overcharge Effect

Decrease DEF for all enemies (6 turns).

Charge 100% 200% 300% 400% 500%
10% 15% 20% 25% 30%

Assorted Info

ID 53
Cost 3
Gender Male
Growth Linear
Inst. Death Chance 58.50%
Damage Distribution Quick 33,67
Damage Distribution Arts 16,33,51
Damage Distribution Buster 100
Damage Distribution Extra 12,25,63
Damage Distribution NP

Attack / HP Growth

Stat Ratings

Interlude Quests

Quest Requirements Reward
Chapter Completion: Okeanos

Ascension: 1

Bond: 3

Rank Up 1
Chapter Completion:

Ascension: 4

Bond: 0

✔ = Available ✖ = Unavailable

Ascension Materials


Skill Enhancement Materials

1 → 2 10,000
2 → 3 20,000
3 → 4 60,000
4 → 5 80,000
5 → 6 200,000
6 → 7 250,000
7 → 8 500,000
8 → 9 600,000
9 → 10 1,000,000

Costume Dress Materials

Costume Cost Materials
April Fool's

Bond CE

Bond Level 1 2 3 4 5 6 7 8 9 10
Bond Pts Req. 2,500 3,750 5,000 6,250 10,000 167,500 170,000 195,000 220,000 295,000
Ariadne's Thread

When equipped on Asterios,
Increase Quick Card effectiveness of all allies by 15% while on the field

Table of Contents


Often overlooked due to his status as a 1 Star Berserker, Asterios is one of the prominent members of Stall teams thanks to his amazing debuff Noble Phantasm. While he is hard to set up properly and requires a specific team composition, once he gets going he can completely debilitate any boss in the game with repeated use of Chaos Labyrinth.

Outside of this particular usage however, Asterios is quite bad in other aspects. Due to being a 1 Star Rarity Servant, his base stats are extremely low, hampering both his offensive capability and survivability. His skillset is nothing truly spectacular, and while he can be used as a Buster Critical Damage Dealer, his flaws will hold him back tremendously without proper team support.

All in all, Asterios is similar to most other low rarity Servants in that he occupies a particular niche that not many people will use, but is extremely effective at that niche. If you are a fan of stall teams in general and have the other pieces to build a team around Asterios, he can get you through some of the toughest battles in the game.


Extremely powerful Debuffing Noble Phantasm

Chaos Labyrinth is one of the best Debuffing Noble Phantasms in the game, allowing Asterios to cripple enemies to help his entire team.

This Noble Phantasm also has tremendously long duration, allowing Asterios to stack these debuffs multiple times over the course of a battle.

Once upgraded, during the turn of its use, most enemies will not be able to do any damage due to the additional one-turn debuff.

Can function as a Critical Damage Dealer

Upon completing his Rank Up quest, Asterios gains access to Labrys of the Abyss, allowing him to gather Critical Stars reliably for one turn. When combined with his heavy Buster-centric deck and his first skill, he can deal a lot of damage during that turn.


Extremely frail

Asterios has very poor survivability on his own due to his low HP and his class. He can get killed with one critical hit from most enemies of the same level.

He also does not have any tools to avoid being focused by bosses (Dodge / Guts / Invulnerability).

This make him extremely reliant on his Noble Phantasm and his teammates in tough challenges.

Requires specific team compositions to work

Asterios does not work well alone. His niche requires the team to facilitate his NP spam through helping him get to 100% NP bar constantly and in addition his team must also be able to protect him from being killed for the first few turns.

Level Up Skill Recommendation

Despite being a 1 star, Asterios actually makes a fine damage dealer due to a combination of his skill set and Noble Phantasm.

  • Monstrous Strength is his bread and butter damage skill and is also the most straightforward to use thanks to its long duration and low cooldown when maxed.
  • Both Natural Demon and Labrys of the Abyss are worth maxing. Natural Demon makes him incredibly tanky after he fires off his NP while Labrys of the Abyss adds some much-needed firepower for him to excel with.
  • On the whole, Labrys of the Abyss comes much later since it requires his Rank Up quest, but its worth more to raise thanks to its good burst potential.

Nonetheless, if players are keen on using Asterios, maxing all three of his skills are highly recommended as they are all great for him.

Craft Essence Recommendation

Asterios shines when used in a Arts Stalling teams due to his NP. Stacking his NP makes his enemies completely useless, so Asterios's main priority in terms of what he wants from a CE is either starting NP gauge to get off his first NP as soon as possible to get him going, or a way to increase his NP gain.

  • Kaleidoscope / Imaginary Element: Allows Asterios to quickly get to 100% NP bar to use his first NP which is the most important one to get him going
  • Little Halloween Devil: Similar to Kaleidoscope and Imaginary Element, however this CE also helps Asterios beyond his first NP use with its increased NP generation rate
  • Prisma Cosmos: For long battles this CE is the best in term of NP generation, and allows Asterios to steadily gain NP even when he is not attacking
  • Divine Banquet: A lesser CE compared to other choices and provides a solid NP generation boost, but its effect is not as profound due to Asterios's lack of more than one Arts card

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Other Info

Release Date Since Launch
AKA/Alias/Nicknames The Bull of King Minos
Country/Place of Origin Greece
Illustrator Shimadrill
Seiyuu (CV) Kousuke Toriumi
Series Fate/Grand Order



Valentine's CE


Non-Limited - Available in the general summoning pool.

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