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Cavernous Wailing Hong Lu E.G.O artwork

E.G.O 0606 · TETH

Cavernous Wailing

Hong LuSlothBlubbering Toad
Risk Level
TETH
SP Cost
20/20/30
Resource Cost
Sloth ×3Gloom ×3Pride ×2E.G.O usable with these resources →
Resistance
×1×2×0.5×1×1×1×2

GUIDEMechanics and How to Use

At a Glance

A Sloth Blunt E.G.O that converts Tremor into Tremor - Reverb and triggers Tremor Burst, dealing Sloth damage and Stagger Threshold shift across multiple targets.

Core Mechanics

  • Tremor - Reverb (Threadspin Ⅲ): Converts Tremor into Tremor - Reverb on hit. On Tremor Burst, the bearer takes Sloth damage equal to Tremor Potency, and its Stagger Threshold also shifts. Count decreases by 1 at Turn End.
  • Tremor Burst: Triggers Tremor Burst on hit, reducing the target's Tremor Count by 1. From Threadspin Ⅲ, the Corrosion skill triggers it twice.
  • Damage Up: Deals more damage based on the target's combined Tremor Potency and Count. The cap rises if the highest Resonance is 4 or more.
  • Inflicting Tremor: Coin Ⅰ inflicts 3 Tremor, and from Threadspin Ⅲ also 2 Count (3 at Ⅳ).
  • Passive — Gloominess: Triggering Tremor Burst inflicts 1 Offense Level Down and 2 Defense Level Down next turn, up to 3 times per turn.

How to Use

  • The higher the Tremor Potency before firing, the more fixed damage it deals. Supplement it with Identities that inflict Tremor reliably or with Mirror Dungeon E.G.O Gifts.
  • It is strong in fights with multiple enemies or parts, where it can catch all of them.
  • Its resources are a large 3 Sloth, 3 Gloom, and 2 Pride.

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

ANALYSISThreadspin

  • Ⅱ: Only unlocks Gloominess.
  • Ⅲ: Adds conversion into Tremor - Reverb and Tremor Count infliction on Awakening. If you use it, take it this far.
  • Ⅳ: Increases Tremor Count infliction, and the Corrosion skill inflicts 6 Tremor and 6 Count.

SKILLSSkill

Awakening

Awakening skill

BluntBlunt
Clash Power
18~26
Base Power
18
Coin Power
+8
No. of Coins
1
Skill Level
Identity Lv+0
Attack Weight
3

If target has , deal +(5 + ( on target + Count on target)/2)% damage (max 20%/25%/30%)

- At 4+ highest Reson., deal +(5/7.5 + ( on target + Count on target)/2/1.5)% damage instead (max 35%/40%)

ⅠOn Hit Inflict 3 and +2 Count and +3 Count

On Hit Trigger ; then, reduce target's Count by 1

On Hit Trigger into

Corrosion

Corrosion skill

BluntBlunt
Clash Power
18~26
Base Power
26
Coin Power
-8
No. of Coins
1
Skill Level
Identity Lv+2
Attack Weight
3

Indiscriminate

Targets randomly

If target has , deal +(5 + ( on target + Count on target)/2)% damage (max 25%/30%/40%)

- At 4+ highest Reson., raise the above cap to (max 35%)/- At 4+ highest Reson., deal +(5 + ( on target + Count on target)/2)% damage instead (max 40%)/- At 4+ highest Reson., deal +(7.5 + ( on target + Count on target)/1.5)% damage instead (max 50%)

ⅠOn Hit Inflict 3/6 and +3/+6 Count

On Hit Trigger ; then, reduce target's Count by 1

On Hit Trigger into

On Hit Trigger ; then, reduce target's Count by 1

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

Gloominess

When this unit uses a Skill to trigger on an enemy, inflict 1 and 2 on the enemy next turn. (3 times per turn, including E.G.O Skills)

SYNERGYTeams and Synergies

  • District 20 Yurodivy: S1 and S2 inflict Tremor, S2 and S3 trigger Tremor Burst, and S1 (Gloom) and S2 (Sloth) supply the required affinities.
  • Full-Stop Office Rep: S1 (Sloth), S2 (Gloom), and S3 (Pride) supply all three required affinities. Tremor needs to come from elsewhere.

KEYWORDSEffect Glossary

Tremor
When attacked by skills that trigger Tremor Burst, raise the Stagger Threshold by the effect’s Potency. At the end of the turn, reduce the Count by 1.
Tremor Burst
Raise target's Stagger Threshold by Tremor Potency on target
Amplitude Conversion
Converts Tremor or already converted Tremor on target to a different type of Tremor. Potency and Count values do not change over the conversion.
Tremor - Reverb
- On Tremor Burst, take Sloth damage equal to Tremor Potency on self. - When hit by Skills that trigger Tremor Burst, raise the Stagger Threshold by the effect's Potency. - Turn End: reduce the Count by 1. (Interacts the same way as normal Tremor does to effects that raise or reduce Tremor Potency/Count)
Defense Level Down
Defense Level decreases based on the effect's Potency for one turn.
Offense Level Down
Offense level decreases based on the effect's Potency for one turn.