English translation in progress. Untranslated passages remain in Japanese.

Cavernous Wailing Sinclair E.G.O artwork

E.G.O 1006 · ZAYIN

Cavernous Wailing

SinclairGloomBlubbering Toad
Risk Level
ZAYIN
SP Cost
15/15/23
Resource Cost
Lust ×1Sloth ×2Gloom ×3E.G.O usable with these resources →
Resistance
×1×1×1×2×0.75×1×2

GUIDEMechanics and How to Use

At a Glance

A multi-target Gloom Blunt defensive E.G.O that gives Shield and Blubberbubble to himself and a low-HP ally after attacking, returning Sinking when the Shield is broken.

Core Mechanics

  • Shield and Blubberbubble: After the attack, gives himself and the 1 ally with the lowest current HP Shield equal to 10% of his max HP (14% at Threadspin Ⅲ, 20% at Ⅳ) and 2 Blubberbubble. It is applied after the attack, so with a slow Identity it does not arrive in time to defend that same turn.
  • Blubberbubble's effect: While it lasts, the Shield does not expire at Turn End. When Shield with Blubberbubble is broken, the attacker receives a total of 4 Sinking.
  • Expansion through Resonance: +1 Attack Weight if the highest Resonance is 4 or more (at Threadspin Ⅲ, Resonance − 2, up to 2, with the number of target allies increasing by the same amount). With a highest Gloom Absolute Resonance of 4 or more, Blubberbubble becomes 3.
  • Passive — Tear Film: At Turn Start, gains 1 Protection if he has Shield, plus 1 more if he also has Blubberbubble.
  • Corrosion skill: Only he receives the buffs, and his Aggro increases next turn. It also inflicts Sinking on hit.

How to Use

  • You want to use it first to protect allies, so fire it with a fast Identity.
  • From Threadspin Ⅲ, building Resonance increases the number of targets, spreading the Shield and Sinking to multiple allies.
  • The Shield amount is based on Sinclair's max HP.
  • It requires 1 Lust, 2 Sloth, and 3 Gloom. As a ZAYIN, equipping it sets his Sin resistances at Combat Start to this E.G.O's (Fatal to Gluttony and Envy).

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

ANALYSISThreadspin

  • Ⅱ: Unlocks Tear Film.
  • Ⅲ: The Shield becomes 14%, and targets and Attack Weight increase with Resonance. Corrosion's Shield and Aggro also increase.
  • Ⅳ: The Shield becomes 20%. Corrosion's Sinking Count becomes 3, and at 4 or more Gloom Resonance, an extra Shield is added.

SKILLSSkill

Awakening

Awakening skill

BluntBlunt
Clash Power
16~24
Base Power
16
Coin Power
+8
No. of Coins
1
Skill Level
Identity Lv-2
Attack Weight
1

Before Attack At 4+ highest Resonance, Attack Weight +1 / Attack Weight increases by (highest Resonance-2) (max 2)

ⅠAfter Attack Give this unit and 1+(highest Resonance-2) allies with the lowest current HP Shield equal to 10/14/20% of this unit's Max HP and 2 (max recipients other than this unit: 3)

-If the recipient already has , set its stacks to 2

-At 4+ highest Gloom Absolute Resonance, this skill gives and sets to 3 instead

Corrosion

Corrosion skill

BluntBlunt
Clash Power
24~16
Base Power
24
Coin Power
-8
No. of Coins
1
Skill Level
Identity Lv+0
Attack Weight
1

Indiscriminate Attack random targets

Before Attack At 4+ highest Resonance, Attack Weight +1 / Attack Weight increases by (highest Resonance-2) (max 2)

Before Attack Gain 5/10 on this skill slot next turn

ⅠOn Hit Inflict 2 and 3 Count

After Attack Gain Shield equal to (15/18/20+highest Resonance × 2.5/3/5)% of own Max HP and 2 (max 25/30/40%)

-If this unit already has , set its stacks to 2

-At 4+ highest Gloom Absolute Resonance, this skill gives and sets to 3 instead

-At 4+ Gloom Resonance, gain additional Shield equal to 10% of own Max HP

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

Tear Film

At Turn Start, gain 1 if this unit has Shield

If this unit has , gain 1 more

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

SYNERGYTeams and Synergies

KEYWORDSEffect Glossary

Blubberbubble
-This effect is treated as Shield-management effect -Decreases by 1 at Turn End -While Blubberbubble is applied, the Shield does not expire at Turn End (except when removed by damage or effects) -When Shield with Blubberbubble is broken by damage, inflict a random mix of Sinking Potency and Sinking Count on the attacker (4 in total) -Shield values can stack; while Blubberbubble is applied, the Shield cannot exceed 60% of the bearer's max HP
Aggro
In Focused Encounters, Slots with higher Aggro are more likely to be targeted by enemy attacks.
Sinking
When hit by an attack skill, take fixed SP damage equal to the Potency (converted to Gloom damage for Abnormalities). After taking damage, reduce Count by 1.
Protection
For 1 turn, decrease damage taken from skills proportional to the value (max 10).