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Cosmic Plushie.png
Cosmic Plushie.png
This item is dedicated to: Dominic Karma
  • Eternity.png
Stack digit 1.png
Damage840 Magic
Knockback0 (No Knockback)
Mana cost30
Critical chance4%
Use time120 Snail
TooltipHexes a possible nearby enemy, trapping them in a brilliant display of destruction
'There's pictures of ponies in the book'
RarityRarity Level: 16
Sell 56 Gold Coin.png
Research1 required
Projectile created
Eternity Crystal
Eternity Crystal
Eternity Book.gif
Holdout Book
Eternity being used against a Super Dummy, with nearby Target Dummies to show its damaging ability. Notice that the flower-shaped beams around the Super Dummy deal damage to the Target Dummy nearby, but the infinity beam, orbiting crystals, and explosion only deal damage to the Super Dummy.

Eternity is a craftable post-Moon Lord developer spell tome. When used, it will create a large circle, which inside will have five crystals, a beam, and a group of projectiles that create a flower shape while traveling, all of which will be centered around a nearby enemy. The beam will travel in an infinity shape. The crystals will circle the targeted enemy. The flower-shaped projectiles will also harm nearby enemies. If the attack button is held, the beam's path will slowly grow in size as the beam changes to a darker blue color. Eventually, if the attack is held for long enough, the beam will disappear and the crystal circle will collapse in on the target, causing massive flower-shaped explosions that inflict massive damage.

Its best modifier is Mythical. However, the weapon's knockback will not be affected due to already being 0.



Crafting Station
Draedon's ForgeDraedon's Forge
Dark PlasmaDark Plasma20
Unicorn HornUnicorn Horn5
Shadowspec BarShadowspec Bar5


  • This weapon cannot receive the Oblatory enchantment.
  • Without an active target nearby, the tome does not perform any of the attacks when used.
  • Each time the infinity beam completes a cycle, it deals 2520 base damage only on the target. Otherwise, it deals no damage.
  • The crystals deal 8400 base magic damage upon collision.
  • The phrase in the tooltip "There's pictures of ponies in the book" alternates between lavender (#9C6CFB ●) and pink (#FF6CFB ●) colors.
  • Eternity only spends mana once per cycle.


  • The weapon's Beam projectile path follows the mathematical sign Infinity (∞), which fits with the weapon's 'Endless' theme.
    • The infinity sign (among other 8 and ∞ shaped curves) is a shape called a Lemniscate.
  • The tooltip on how the book has pictures of ponies in it is a reference to My Little Pony: Friendship Is Magic, a show the dedicatee is a fan of.
    • The Unicorn Horns in the recipe reference this as well.
  • This weapon actually has a unique rarity but is referred to here as Hot Pink for consistency between weapons.
    • This unique rarity alternates between grey (#BCC0C1 ●), purple (#9D64B7 ●), orange (#F9A64D ●), pink (#FF69EA ●), sky blue (#43CCDB ●), yellow (#F9F563 ●), and pale purple (#ECA8F7 ●).
      • These colors are references to the main cast of My Little Pony: Friendship Is Magic: Rarity, Twilight Sparkle, Applejack, Pinkie Pie, Rainbow Dash, Fluttershy, and Starlight Glimmer, respectively.


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
  • Increased sell price from 40 Gold Coin to 56 Gold Coin.
  • No longer uses Seething Discharge, Slithering Eels, Biofusillade or Primordial Ancient in its recipe.
  • Can no longer receive the Oblatory enchantment.
    • Nerfed damage from 4200 to 840.
    • Nerfed crystal damage from 42,000 to 8400.
    • Now uses Heresy and 5 Shadowspec Bars in its recipe instead of Subsuming Vortex and 10 Shadowspec Bars.
    • Fixed a bug that prevented it from auto-targeting another enemy after killing its first target.
    • Nerfed damage from 6969 to 4200.
    • Reduced hex ring radius.
  • Now uses Slithering Eels in its recipe instead of Tome of Fates.