Skull Knight

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Skull Knight.jpg Elemental Resistances














Null - - - - Resist Null
Rarity Race Grade AI
5★ Fiend 90 Attack
6★ Stats
HP 1122 (116/370) Vitality 160 (116/370)
Strength 217 (23/370) Agility 147 (175/370)
Magic 109 (263/370) Luck 150 (190/370)
PATK 785 PDEF 614
MATK 558 MDEF 560
Innate Skills
Passive.png Great Aim Passive +20% to Phys hit rate.
Passive.png Foe of Demons Passive Adds Phys Pierce.

Activates the following Chain Effect at the start of enemy turn:

Increases DEF and EV/AC of all party members by 20%. (1 turn)
Almighty.png Sword of Actuation 6 MP Inflicts Almighty (Physical) damage (Power: 160) on a single enemy.

*The damage inflicted by this skill is dependent on Phys ATK. *Nullifies all death prevention skills.
*This skill has a chance of having a Critical effect or a Miss which are dependent on their respective rates.

*Enemies downed by this skill will not be able to revive.
Gacha: -
Awaken: Phys.png Hades Blast 6 MP Inflicts Phys (Physical) damage with 120 power on All Enemies.
Gacha: Phys.png God's Hand 8 MP Inflicts Phys (Physical) damage with 200 power on a Single Enemy.
Awaken: Support.png Offensive Cry 7 MP Reduces all enemy DEF and increases own parties ATK by 20% for 3 turns.
Gacha: Passive.png Infernal Mask Passive -60% chance of receiving status ailments.
Awaken: Passive.png Master Assassin Passive +20% to single-target attack skill damage.
Gacha: Passive.png Enduring Soul Passive Heals 200 HP upon receiving the first killing blow.
Awaken: Passive.png Repel Phys Passive Adds Phys Repel.
Gacha: Passive.png Null Light Passive Adds Light Null.
Spirit Merge Panel Upgrades
Panel 1 Panel 2 Panel 3
Panel Completion Bonus +15% to Phys hit rate. Reduces the cost of Sword of Actuation by 1MP. +25% to single-target attack damage.
Panel Step Stat Bonus HP +25 (MAX +250) Phys ATK +10 (MAX +100) HP +25 (MAX +250)


  • Banner s.png Only available from a banner specific event.
  • Gacha s.png Available from the gacha.
  • Event s.png Only available from an Event.

Skull Knight/Sword Skull Knight/Shield

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Role Summary

Name Best Archetype(s) PVE PVP Democalypse
PVE PVP Offense Defense Prelim Boss
Skull Knight.jpg Skull Knight
Purple Teal Teal Purple 3 2 2 2 1
  • Demons die when they are killed by Sword of Actuation, unable to be revived.
  • Sword of Actuation has a ridiculously low MP cost at max level (5 MP) - Even without Panels it can be cast Turn 1 with War Brands. Panel 2 further reduces it to 4 MP, allowing it to be cast regardless of brands or matchup.
  • Foe of Demons defensively buffs your team at the start of your opponent's turn, increasing your odds of surviving.
  • Repel Phys in Teal makes him a good partner for Alilat and Atavaka.
  • Difficult to boost Sword of Actuation further due to it being Almighty Physical, especially in Purple where Master Assassin is already provided.
  • Requires a good team setup around him to truly shine.
  • Middling AGI makes him slightly awkward to fit in fast or slow teams.
  • Has AI issues when used on defense - AI will occasionally target demons with high HP instead of trying to finish off demons with Sword of Actuation. This can be circumvented by pairing him with sweepers like Hecate or Atavaka to soften everyone up, ensuring Sword of Actuation will kill whoever his AI targets. Auto-Rebellion also supposedly fixes this issue.
  • Limited-time Collaboration unit. Nobody knows if he will be rerun.

PvE Builds

PvP Builds


  • Purple: Master Assassin to boost Sword of Actuation's damage, also saves a skill transfer.
  • Teal: Repel Phys Makes him great in Repel teams.

Skill Transfers

Damage Boosters to ensure Sword of Actuation can kill to revive seal. Crit boosters are needed to boost SoA's damage further as Almighty damage is hard to increase. Accuracy can be used to hit dodge tanks.

Damage Boosters:

  • Master Assassin: highest ST damage modifier for SoA (only for not Purple).
  • Wicked Strike: Crit damage + crit rate modifier.
  • Death Blow: a huge damage modifier that pairs well if he has Crit rate modifiers.
  • Almighty Boost/Almighty Survivor: a blanket boost for SoA. Almighty Survivor adds an Endure. Very rare and hard to obtain.
  • Assassin: early game/budget option. Can be used to stack with Master Assassin.

Crit Boosters:

  • Auto-Rebellion: best option. Gives SK a T1 nuke with SoA to kill off problematic demons early before they become a problem. Only available as Gacha from Yellow Tokisada and Marici.
  • Wicked Strike: Crit damage + crit rate modifier.
  • Epitome of Carnage: enhances both Crit Rate and Phys damage.
  • Savage Glee: highest Crit Rate modifier for consistent crits. Beware of Crit Rate reduction from the likes of Epitome of Fortitude and Wild Instinct.
  • Bloody Glee: early game/budget option.

Accuracy Boosters:

  • Epitome of Aggression: Accuracy modifier + Ailment resistance.
  • Good Aim: early game/budget option.

Other/Misc. Skills:

  • Enduring Soul/+: adds survivability to him to keep revive sealing.
  • Speedster: boosts team Battle Speed if needed.


  • Stat priorities: Phys ATK%, Phys AC%, Speed%
  • War: boosts damage output.
  • Life: adds bulk.
  • Divine: allows him to spam SoA (every turn if P2)
  • Ward: protects him from ailments for 3 turns.
  • Aim: boosts accuracy.
  • Speed: boosts team Speed if needed.


  1. STR (20): to boost damage output.
  2. VIT (20): boosts his bulk.
  3. AGI (20): increases his accuracy and team speed.
  4. LUK (10): increases his chances of landing attacks and crits.


Haha Revive Seal goes Brrrrrrrrrrr!
ArchPurple.png Transferred Skills Notes:

This build is made for T1 and Midrange teams. Perfect for countering revive BS except against Maria. SoA is very hard to block (except Human Beelzebub) You can also use Death Blow for more damage or Almighty Survivor for damage + endure.

Death Blow Auto-Rebellion
Infused Mitama
St 20 Ag 20 Lu 10
War + Aim/Speed with Phys ATK%
Target Stats

The sword that seals and the shield repels
ArchTeal.png Transferred Skills Notes:

This build is made for Repel, Midrange and IS teams. Does everything he needs to do while adding Repel Phys for Repel teams.

Master Assassin Auto-Rebellion
Infused Mitama
St 20 Vi 20 Lu 10
War/Life + Aim/Ward with Phys ATK%
Target Stats

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Official Profile

An entity that exists between the Astral World and the Physical World. He appears before Guts from time to time. Sometimes to lend a hand in battle, sometimes to guide Guts with cryptic words.