Calamity Mod Wiki
Eidolic Wail
  • Eidolic Wail.png
Stack digit 1.png
TypeWeaponCrafting material
Damage126 Magic
Knockback1 (Extremely Weak)
Critical chance4%
Use time36 Very Slow
Fires a string of bouncing sound waves that become stronger as they travel
Inflicts DebuffCrush DepthCrush Depth
100% chance

Debuff duration10 seconds
Debuff tooltipAquatic pressure
RarityRarity Level: 13
Sell 28 Gold Coin.png
Projectile created
Eidolic Sound Wave
Eidolic Sound Wave
Dropped by
Eidolon Wyrm (Juvenile) (After Polterghast has been defeated)133.33%
Eidolon Wyrm (Adult)1100%

The Eidolic Wail being used on three Target Dummies. Note how the projectiles grow significantly in size and slow down while dealing increasing damage to each dummy.

The Eidolic Wail is a post-Moon Lord magic gun that drops from Eidolon Wyrms after Polterghast has been defeated. It fires three sound waves in quick succession that bounce off walls. The sound waves continuously grow in size and damage as they travel, but slow down as they grow larger. The sound waves ignore NPC immunity frames, dealing constant damage to any enemies they touch, and inflict the Crush Depth debuff.

Its best modifier is Mythical.


Used in[]


  • The Eidolic Wail can potentially be obtained long before defeating Polterghast if the player manages to slay an Adult Eidolon Wyrm.
  • The sound waves are fired 17 ticks apart, with a 30 tick delay between each group of three sound waves.


  • The Eidolic Wail uses very little mana and can deal extreme damage, making it a reliable weapon for any mage player once acquired.
  • Because the sound waves gain more damage as they grow, this weapon does significantly increased DPS at a distance.
  • This weapon is near useless versus individual targets because its projectiles are so slow. However, its ability to ignore NPC immunity frames and pierce infinitely makes it incredibly powerful for dealing with crowds of enemies.


  • Earrape is the act of destroying someone's ears with a song that has been distorted and bass boosted.