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Etherian Mana

Etherian Mana is used to summon Towers and Traps in the Old One's Army event. It has a high chance to be dropped by all of the Old One's Army event enemies. Each wave will produce Etherian Mana in multiples of ten - after receiving a starting amount of ten when activating the Eternia Crystal, each wave will produce either 20 or 30 Etherian Mana. Each rod-casted defense tower costs 10 Etherian Mana/Use, so conserving Etherian Mana and developing a strategy is key to the event. This item will disappear after the invasion has ended, along with all event enemies.

Etherian Mana
Stack digit 9.pngStack digit 9.pngStack digit 9.png
Etherian Mana inventory icon
Type Consumable
Tooltip Often used to manifest one's will as a physical form of defense
Rarity Rarity Level: 0
Internal Item ID: 3822
Desktop Version Desktop-Only Content: This information applies only to the desktop version of Terraria.


  • It is possible to keep the Etherian Mana by placing it in a chest (do not open it again if the event isn't in progress or it'll be lost) before the Old One's Army event ends.
  • In the game code, prior to 1.3.5, its name was "its an ammo technically!". Because the actual name was stored in a separate file, this wouldn't display.

See alsoEdit

  • Mana at Dungeon Defenders 2 Wiki


 Desktop version

  • Desktop Can no longer be kept in the trash slot between two Old One's Army events.
Consumables:   Potions (   Buff Potions) •   Thrown Weapons

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