Theorylytics
Seth
ElectricDefenseN.E.P.S.★★★★ A-Rank

Seth

Published Jul 19, 2026 · Updated v3.0
Content Ratings
Shiyu DefenseB
Deadly AssaultB
Hollow ZeroB
Should You Pull?SITUATIONAL

Seth is a highly specialized defensive support that excels in enabling Anomaly teams through his unique shield-based buffs. If you main an Electric or Anomaly-based DPS, he is a premier pick; otherwise, his niche utility might not warrant resources.

Seth functions as a defensive pivot who specializes in granting shields and boosting team Anomaly Proficiency through his Resolve mechanic [L35, L76]. By consuming Resolve via his empowered Basic Attack, he can trigger Quick Assists to rotate your main DPS onto the field instantly. His kit emphasizes high-frequency parrying and shield maintenance to sustain team survivability while simultaneously enabling massive Electric Anomaly output [L101, L122].

DefenseElectricShieldSupportAnomaly-EnablerQuick-AssistParry

Overview

Quick Build

W-Engine

Peacekeeper - Specialized

S-rank — ATK, best in slot

Disk Set

Astral Voice

4-PC · Best in slot

Disk 4

ATK% >= Anomaly Proficiency

Main stat

Disk 5

ATK% >= Electric DMG%

Main stat

Disk 6

Energy Regen = Anomaly Mastery

Substats

ATK% > Anomaly Proficiency > ATK > PEN

Strengths

  • Provides significant team shield utility
  • Smoothly facilitates Quick Assist rotations
  • Strong Electric Anomaly buildup potential [L40, L101]
  • High damage reduction during active skills [L86, L101]
  • Invulnerability frames during core defensive maneuvers [L91, L122]

Weaknesses

  • Damage output is secondary to utility
  • Requires active shield management for passives
  • Resolve mechanic demands specific combo sequencing
  • Less effective in non-Anomaly team compositions
  • Slower energy generation without specific W-Engine support

Skill Priority

1
Basic AttackHighest

Primary damage source.

2
Special AttackHigh

EX delivers strong damage.

3
Chain AttackMedium

Chain burst.

4
Core PassiveMedium

Passive enhancement.

5
DodgeLow

Negligible.

Stat Priority

1
CRIT Rate75–80%
2
CRIT DMG150–200%
3
ATK2500+
4
Anomaly Proficiency120+
5
HP10000+
6
PEN RatioAs available
Rotation Priority
Electric Anomaly

Use EX Special or Chain Attack to gain Resolve, then tap Basic Attack to trigger Quick Assist for your main DPS [L76, L101, L106].

Resolve > 75%
Defensive Setup

Upon a successful Defensive Assist, follow up with the Assist Follow-Up to chain directly into an empowered state [L116, L122].

Defensive Assist

Review and adjust rotations based on your specific team composition.

W-Engines

A-Rank W-Engines

1
Peacekeeper - Specialized

Anomaly Proficiency

While Shielded, the equipper's Energy Regen increases by 0.4/s. The Anomaly Buildup of EX Special Attacks and Assist Follow-Ups increase by 36%.

Why it works —Provides vital Energy Regen and massive Anomaly Buildup boosts, making it his best-in-slot.

2
Spring Embrace

Energy Regen

Reduces DMG taken 7.5/8.5/9.5/10.5/12%. When attacked, the equipper's Energy Generation Rate increased by 10/11.5/13/14.5/16% for 12s. When the equipper switches off-field, this buff will be transferred to the new on-field character with its duration refreshed. Passive effects of the same name do not stack.

Why it works —Great F2P utility engine for increased Energy Generation Rate and damage reduction.

3
Bunny Band
Bunny BandBF2P Best

DEF

Increases Max HP by 8/9.2/10.4/11.6/12.8%. Increases the equipper's ATK by 10/11.5/13/14.5/16% when they are shielded.

4
Original Transmorpher

HP%

Increases Max HP by 8/9/10/11/12.5%. When attacked, the equipper's Impact is increased by 10/11.5/13/14.5/16% for 12s.

Disk Drives

Astral Voice (4-PC)
SAstral Voice (4-PC)Best in Slot
4PCWhenever any squad member enters the field using a Quick Assist, all squad members gain 1 stack of Astral, up to a maximum of 3 stacks, and lasting 15s. Repeated triggers reset the duration. Each stack of Astral increases the DMG dealt by the character entering the field using a Quick Assist by 8%. Only one instance of this effect can exist in the same squad.
2PCPair with: Swing Jazz.
Optimal choice to maximize energy regeneration and support uptime.

Disk 4

ATK% >= Anomaly Proficiency

Disk 5

ATK% >= Electric DMG%

Disk 6

Energy Regen = Anomaly Mastery

Swing Jazz (4-PC)
ASwing Jazz (4-PC)Farmable
4PCLaunching a Chain Attack or Ultimate increases all squad members' DMG by 15% for 12s. Passive effects of the same name do not stack.
2PCPair with: Hormone Punk, Proto Punk, Shockstar Disco.
Reliable set for sustaining defensive utility through secondary stats.

Disk 4

ATK% >= Anomaly Proficiency

Disk 5

ATK% >= Electric DMG%

Disk 6

Energy Regen = Anomaly Mastery

Proto Punk (4-PC)
BProto Punk (4-PC)Farmable
4PCWhen any squad member triggers a Defensive Assist or Evasive Assist, all squad members deal 15% increased DMG, lasting 10s. Passive effects of the same name do not stack.
2PCPair with: Swing Jazz, Hormone Punk, Shockstar Disco.

Disk 4

ATK% >= Anomaly Proficiency

Disk 5

ATK% >= Electric DMG%

Disk 6

Energy Regen = Anomaly Mastery

Freedom Blues (4-PC)
BFreedom Blues (4-PC)Farmable
4PCWhen an EX Special Attack hits an enemy, reduce the target's Anomaly Buildup RES to the equipper's Attribute by 20% for 8s. This effect does not stack with others of the same attribute.
2PCPair with: Swing Jazz, Hormone Punk, Shockstar Disco.

Disk 4

ATK% >= Anomaly Proficiency

Disk 5

ATK% >= Electric DMG%

Disk 6

Energy Regen = Anomaly Mastery

Team Compositions

Seth

Seth

Defense

Grace

Grace

Anomaly

Yanagi

Yanagi

Anomaly

Reliable shell for Seth: Seth, Grace, Yanagi. Covers stun, support, and damage roles around Seth's Defense kit.

Agent Synergy
Seth
SethDefense

Primary Defense — defines this squad's game plan.

Grace
GraceAnomaly

Anomaly partner that amplifies Seth's damage windows.

Yanagi
YanagiAnomaly

Anomaly partner that amplifies Seth's damage windows.

Skills & Mindscapes

Skills

Basic AttackBasic Attack: Lightning Strike

Unleashes up to 4 attacks in front, dealing Physical DMG and Electric DMG.

Basic AttackBasic Attack: Lightning Strike - Electrified

When Resolve is above 75%, hold Basic Attack to activate: Consume 75% Resolve to launch continuous attacks in front, followed by a finishing strike that deals Electric DMG. When the finishing strike hits an enemy, it triggers the Quick Assist of the squad member positioned before Seth. Anti-Interrupt level is increased while using this skill.

DodgeDodge: Evasion Maneuver

A quick dash dodge. Character is invulnerable while using this skill.

DodgeDash Attack: Thunder Assault

Charge forward with a shield attack, dealing Physical DMG. Damage received during the move is decreased by 40%.

DodgeDodge Counter: Retreat to Advance

Unleash a quick downward strike on enemies in front, dealing Electric DMG. After the move, hold Special Attack to chain into EX Special Attack: Thunder Shield Rush - High Voltage, enabling faster charging. Character is invulnerable while using this skill.

Special AttackSpecial Attack: Thunder Shield Rush

Hold Special Attack to activate. Launch two shield strikes forward, dealing Electric DMG. Anti-Interrupt level is increased while using this skill.

Special AttackEX Special Attack: Thunder Shield Rush - High Voltage

When Seth has enough energy, press Special Attack to activate: Unleash a series of slashes in front, dealing massive Electric DMG. Hold Special Attack to charge the move, and Seth will dash forward, unleashing a series of powerful slashes, dealing massive Electric DMG. Activating the move accumulates 75% Resolve. Anti-Interrupt level is increased while charging this skill, and damage taken is reduced by 40%. Seth is invulnerable during the continuous slashes.

Chain AttackChain Attack: Final Judgement

When a Chain Attack is triggered, select Seth to activate: Launch a series of slashes in front, dealing massive Electric DMG. Activating the move accumulates 75% Resolve. After the move, hold Special Attack to chain into EX Special Attack: Thunder Shield Rush - High Voltage, enabling faster charging. Character is invulnerable while using this skill.

UltimateUltimate: Justice Prevails

When Decibel Rating is at Maximum, press Ultimate to activate. Launch a series of upward slashes in front, followed by a finishing strike, dealing massive Electric DMG. Activating the move accumulates 75% Resolve, and grants 3 additional Assist Points. After the move, hold Special Attack to chain into EX Special Attack: Thunder Shield Rush - High Voltage, enabling faster charging. Character is invulnerable while using this skill.

AssistAssist Follow-Up: Public Security Ruling

Press Basic Attack after a Defensive Assist to activate. Launch a forward thrust attack, followed by two horizontal slashes, dealing Electric DMG. When the finishing strike hits an enemy, it triggers the Quick Assist of the squad member positioned before Seth. After the move, hold Special Attack to chain into EX Special Attack: Thunder Shield Rush - High Voltage, enabling faster charging. Character is invulnerable while using this skill.

AssistDefensive Assist: Thundershield

When the character on field is about to be attacked, press Assist to activate. Parries the enemy's attack, inflicting massive Daze. Seth gains 25% Resolve upon activating the skill. Character is invulnerable while using this skill.

Mindscapes

1
M1
2
M2
3
M3
4
M4
5
M5
6
M6
M1HeroismPull Target

The shield value provided by Shield of Firm Resolve and its maximum limit is increased by 30%. When Shield of Firm Resolve ends, the Anomaly Proficiency increase provided by Core Passive: Protector lasts an additional 10s.

Is it worth getting?

High value as it extends shield duration and Anomaly Proficiency buffs.

M2Recklessness of YouthPull Target

Upon entering battle, Seth immediately gains 75% Resolve. Hitting an enemy with Basic Attack: Lightning Strike - Electrified increases the move's accumulated Electric Anomaly Buildup by 35%.

Is it worth getting?

Excellent for opening rotation efficiency with immediate Resolve gain.

M3Slow Reflexes

Basic Attack, Assist, Dodge, Special Attack, and Chain Attack Lv. +2

Is it worth getting?

Skill-level bump only — fine on the path to higher Mindscapes, not a pull goal by itself.

M4Core Aspiration

The Daze caused by Defensive Assist: Thundershield is increased by 25%.

Is it worth getting?

Useful tempo upgrade — smoother resources, stun windows, or rotation uptime.

M5Distant Admiration

Basic Attack, Assist, Dodge, Special Attack, and Chain Attack Lv. +2

Is it worth getting?

Skill-level bump only — fine on the path to higher Mindscapes, not a pull goal by itself.

M6Idealist

When Seth lands a finishing strike on an enemy with Basic Attack: Lightning Strike - Electrified, it deals additional damage equal to 500% of his ATK. The attack is guaranteed to trigger a CRIT, and CRIT DMG is increased by 60%.

Is it worth getting?

Solid CRIT upgrade — helps hit thresholds and raises personal damage cleanly.

Seth is viable and competitive at M0. First stop: M2. Endgame target: M2.

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