
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].
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
Primary damage source.
EX delivers strong damage.
Chain burst.
Passive enhancement.
Negligible.
Use EX Special or Chain Attack to gain Resolve, then tap Basic Attack to trigger Quick Assist for your main DPS [L76, L101, L106].
Upon a successful Defensive Assist, follow up with the Assist Follow-Up to chain directly into an empowered state [L116, L122].
Review and adjust rotations based on your specific team composition.

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.

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.

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.

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 4
ATK% >= Anomaly Proficiency
Disk 5
ATK% >= Electric DMG%
Disk 6
Energy Regen = Anomaly Mastery

Disk 4
ATK% >= Anomaly Proficiency
Disk 5
ATK% >= Electric DMG%
Disk 6
Energy Regen = Anomaly Mastery

Disk 4
ATK% >= Anomaly Proficiency
Disk 5
ATK% >= Electric DMG%
Disk 6
Energy Regen = Anomaly Mastery

Disk 4
ATK% >= Anomaly Proficiency
Disk 5
ATK% >= Electric DMG%
Disk 6
Energy Regen = Anomaly Mastery
Seth
Defense
Grace
Anomaly
Yanagi
Anomaly
Reliable shell for Seth: Seth, Grace, Yanagi. Covers stun, support, and damage roles around Seth's Defense kit.
Primary Defense — defines this squad's game plan.
Anomaly partner that amplifies Seth's damage windows.
Anomaly partner that amplifies Seth's damage windows.
Unleashes up to 4 attacks in front, dealing Physical DMG and Electric DMG.
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.
A quick dash dodge. Character is invulnerable while using this skill.
Charge forward with a shield attack, dealing Physical DMG. Damage received during the move is decreased by 40%.
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.
Hold Special Attack to activate. Launch two shield strikes forward, dealing Electric DMG. Anti-Interrupt level is increased while using this skill.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Not sure Seth is right for you? Compare against other Defense agents to find your best pull.

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