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  • Terratomere.png
Stack digit 1.png
TypeWeaponCrafting material
Damage370 Melee
Knockback7 (Strong)
Critical chance4%
Use time20 Average
TooltipHeals the player on true melee hits
Fires a piercing energy bolt that causes hit targets to explode and be slashed
'Linked to the essence of Terraria'
Inflicts DebuffGlacial StateGlacial State
100% chance

Debuff duration0.5 seconds (Contact)
Debuff tooltipCannot move
RarityRarity Level: 12
Sell 24 Gold Coin.png
Research1 required
Projectiles created
Terratomere Beam
Terratomere Beam
Terratomere Explosion
Terratomere Explosion
The Terratomere in use. Note the short-ranged wave, explosive energy bolt, and the on-hit flurry of slashes.
Not to be confused with Teratoma, the summoning item for The Hive Mind.

The Terratomere is a craftable post-Moon Lord broadsword that autoswings. It fires a single energy bolt that explodes on hit and also fires a short-range slash projectile after every swing. Both the blade and energy bolts create additional light beams that slash the enemy for 40% of the weapon's damage on hit. The sword itself inflicts Glacial State and heal the player for 4 HP.

Its best modifier is Godly. It cannot get modifiers that affect size. Ruthless might be preferred if the player already has 100% critical strike chance.



Used in


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
  • Fixed explosions dealing ranged damage instead of melee damage.
    • Reworked:
      • Buffed damage from 260 to 303.
      • Now has a custom swing animation, and when swung, fires a single energy bolt that explodes on hit.
      • The blade also shoots a short range slash projectile after every swing.
      • Both the blade and the energy bolts create additional light beams that slash the enemy for 40% base damage on hit.
    • Can no longer be crafted with Terra Edge.
  • No longer considered a nature weapon.
    • Buffed damage from 125 to 260.
    • Decreased Glacial State duration from 2 seconds to 0.5.
    • Now uses 5 Uelibloom Bars in its recipe instead of 5 Astral Bars.
    • Resprited it and its beams.
    • No longer inflicts On Fire!, Cursed Inferno, Frostburn, or Ichor.
    • Decreased Glacial State duration from true melee hits from 5 seconds to 2, but now has a 100% chance to be inflicted instead of 33.33%.
    • No longer uses Entropic Claymore in its recipe.
  • Nerfed damage from 135 to 125, and use time from 19 to 20.
    • Fixed tooltip to reflect its current function.
    • Swing now functions in PvP.
  • Now uses 5 Astral Bars in its recipe.
  • Decreased true melee Cursed Inferno duration from 11.33 seconds to 10, and Frostburn duration from 10.33 seconds to 10.
    • Beams are now guaranteed to inflict Glacial State for 1 second instead of having a 33% chance to inflict it for 2 seconds.
    • Decreased beam's Cursed Inferno duration from 18.67 seconds to 10, Frostburn duration from 11 seconds to 5, increased On Fire! duration from 13.33 seconds to 15, and decreased Ichor duration from 5 seconds to 3.
    • Changed its tooltip.
    • Buffed damage from 100 to 135, but projectiles no longer heal the player.
    • Can no longer heal off of enemies with the canGhostHeal tag set to false.
  • Beams now deal 50% base damage instead of 40%.
    • Beams now deal 40% base damage instead of 33.000001311302185%.
    • Beams now have a 50% chance to heal the player instead of 33.33%.
    • Resprited beam.
  • Decreased sell price from 48 Gold Coin to 30 Gold Coin.
  • Projectiles now deal 33% base damage instead of 50%.
  • Projectiles now deal 50% base damage instead of 60%.
    • Projectiles now last 3 seconds instead of 4.
    • Resprited.
  • Now uses Floodtide in its recipe instead of Mariana.
    • Nerfed damage from 105 to 100.
    • Beams now deal 60% base damage instead of 85%.
    • Nerfed damage from 135 to 105.
    • Lowered the amount of health recovered on hits by 1.
  • Nerfed damage from 175 to 135, but beam now deals 85% base damage instead of 70%.
    • Buffed damage from 155 to 175.
    • Now heals the player.
    • No longer inflicts Chilled.
    • Now inflicts Ichor for 5 seconds.
    • Beams no longer produce dust.
  • Beams now deal 70% base damage instead of 50%.
  • Beams no longer produce any dust idly, now use dust type 107 instead of 74, and have a green color filter.
  • Now requires an Ancient Manipulator to craft instead of a Hardmode Anvil.
  • No longer uses Cores of Calamity, Cruptix Bars, Draedon Bars, Meldiate Bars, Verstaltite Bars, or Ueliace Bars in its recipe.
    • Beams now last 4 seconds instead of 10.
    • Resprited.
  • Now requires a Hardmode Anvil to craft instead of a Particle Accelerator.
    • Projectiles now have greater homing capabilities.
    • Fixed projectiles gaining ludicrous amounts of speed when homing in on enemies.
  • The sword and its projectiles now inflict Glacial State.
  • 1.1: Projectiles no longer play a sound on tile collide.
  • 1.0: Introduced.