English translation in progress. Untranslated passages remain in Japanese.

E.G.O 0408 · HE

Thoracalgia

RyōshūPrideSleeping Bag of a Bygone DayS5 event exclusive

Risk Level: HE
SP Cost: 25/25/38
Resource Cost: Wrath ×1Lust ×1Pride ×5E.G.O usable with these resources →
Resistance: ×0.75×1×2×2×1×0.5×1

GUIDEMechanics and How to Use

At a Glance

A multi-target Pride Slash E.G.O whose damage soars the more Poise she builds before using it; its Corrosion skill benefits from killing allies.

Core Mechanics

Replacement bonuses from Poise: Before attacking, she gains Poise and Poise Count, but at 15 or more Poise, Final Power rises instead of Poise, and at 5 or more Poise Count, Coin Power rises instead of Count (Final Power scales with the highest Resonance, and the Count side with half of it).
Critical bonus: Coin Ⅱ gains Critical damage based on combined Poise Potency and Count, up to 20% at Threadspin Ⅲ and 40% at Ⅳ. It also grants Deep Inhale on hit.
On kills: Defeating a target grants Deep Inhale next turn. Deep Inhale spends Poise Potency on Critical Hits to add Critical damage.
Corrosion skill: Attacks the target with the lowest HP, prioritizing allies. +30% damage if allies are included, and from Threadspin Ⅲ, killing an ally restores SP.
Passive — Breath: At the start of the turn after use, she gains 1 Nebulizer β, plus 1 for each enemy defeated and 2 for each ally defeated (accumulates during battle, up to 5). At Combat Start on a turn with Pride Absolute Resonance, she and a random ally gain Poise and Poise Count.

How to Use

Fire it at multiple enemies once Poise has built up. Turn 2 or later is likely a good guideline.
The more Resonance you build, the more easily the bonuses reach their maximum.
The Corrosion skill spends her own HP to make up Poise when it is below 15. Because it kills allies, handle it with care outside specific teams.
It requires 1 Wrath, 1 Lust, and 5 Pride, heavily skewed toward Pride.

A practical guide based on the skill and passive descriptions below.(Updated: 2026-10-18)

ANALYSISThreadspin

Ⅱ: Unlocks Breath.
Ⅲ: The Resonance-based cap becomes 6, and the Critical damage increase and the Corrosion skill's Poise infliction are added.
Ⅳ: Raises Base Power, raises the Count-based bonus cap to 3, and raises the Critical damage increase to up to 40%. The Corrosion skill gains an effect that returns resources.

SKILLSSkill

Awakening

Awakening skill

Slash

Clash Power: 8~186~16 → 8~18
Base Power: 86 → 8
Coin Power: +5
No. of Coins: 2
Skill Level: Identity Lv+3
Attack Weight: 3

Before Attack Gain equal to the highest Resonance (max 4/6)

-At 15+ , Final Power +(highest Resonance) instead (max 4/6)

Before Attack Gain Count equal to (highest Resonance÷2) (max 2/3)

-At 5+ Count, Coin Power +(highest Resonance÷2) instead of gaining Count (max 2/3)

On Kill Gain 1/2 next turn (max 2/4/6 per 1 turn)

ⅡCritical damage +( Potency plus Count)% (max 20/40%)

On Hit Gain /4 (1 time per 1 turn)

Corrosion

Corrosion skill

Slash

Clash Power: 8~244~20 → 8~24
Base Power: 2420 → 24
Coin Power: -8
No. of Coins: 2
Skill Level: Identity Lv+5
Attack Weight: 4

Indiscriminate Prioritizes the target with the lowest HP (prioritizes allies)

Damage +30% if the targets include allies

Before Attack If is below 15, spend 10% of Max HP to gain 5 and 5 Count

-This effect cannot Stagger or kill this unit

-Gain 1/2 per 1 ally among the targets (max 2/4)

After Attack If the target died, gain 2/3 next turn (1 time per 1 turn). If the target is an ally, the following effects also trigger

-The ally who leaves Standby or joins the battle because of the defeated ally gains 2/4 and 2/4 Count

-Recover (half of) the SP spent by this skill, and gain 1 of each Sin of E.G.O resource consumed

ⅡCritical damage +( Potency plus Count)% (max 20/40%)

On Hit Gain 4/7 (1 time per 1 turn)

Normal Coin Unbreakable CoinThreadspin Ⅲ Threadspin Ⅳ mark additions or changes at those Threadspin tiers. Multiple values represent different tiers; the larger value is for the highest tier.

PASSIVEE.G.O Passives

E.G.O Passives

Breath

At the start of the turn after using this skill, gain 1 (1 time per 1 turn)

-If this skill killed enemies, gain additional equal to the number of targets killed

-If this skill killed allies, gain additional equal to (number of targets killed×2)

-This value accumulates for the rest of this battle

※Unlocked at Threadspin Ⅱ; active from the turn after E.G.O use until the end of battle

SYNERGYTeams and Synergies

Edgar Family Chief Butler: S1 (Lust), S2 (Pride), and S3 (Wrath) match the required affinities, and she has many skills that build Poise.
Blade of the House of Spiders: Has Lust, Pride, and Wrath skills and many skills that earn Poise. She supplies Pride resources.

Team Builds That Suit This E.G.OHouse of Spiders Team Blade Ryōshū Solo

KEYWORDSEffect Glossary

Poise: When flipping a Coin, has a [5 × Potency]% chance to deal a Critical Hit. Critical Hits deal 20% more damage. At Turn End or after a Critical Hit, reduce Count by 1.
Deep Inhale: -Max: 20 -On Critical Hit, at 15+ Poise Potency and 5+ Poise Count, consume Poise Potency equal to (Poise Potency held÷5) to increase Critical damage by (amount consumed×4)%, and consume 1 of this value
Nebulizer β: -Max: 5 -This effect lasts for the rest of this battle -If Pride Absolute Resonance was triggered, at Combat Start this unit and (stacks) random allies gain 3 Poise and 3 Poise Count (applied first to allies with low Poise Potency among those who use or gain Poise or Poise Count themselves)