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Cosmic Plushie.png
Cosmic Plushie.png
Influential Mod Creator
This item is dedicated to: Omnir
  • Omniblade.png
Stack digit 1.png
Damage100 True melee
Knockback6 (Average)
Critical chance49%
Use time9 Very Fast
TooltipAn ancient blade forged by the legendary Omnir
Inflicts DebuffWhispering DeathWhispering Death
100% chance

Debuff duration5 seconds
Debuff tooltipDeath approaches; attack power and life regen reduced
RarityRarity Level: 8
Sell 12 Gold Coin.png
Research1 required
Projectile created
Omniblade Slash
Omniblade Slash

The Omniblade is a craftable Hardmode melee weapon. Attacking with this weapon swings a 180° holdout projectile that swings over the player, similar to that of the Murasama, however, it cannot be controlled with the cursor. It has a fast autoswing rate and a considerable large slash area. It can inflict the Whispering Death debuff, which reduces the target's contact damage by 10%.

Its best modifier is Godly. It cannot get modifiers that affect size.



Crafting Station
Mythril AnvilMythril Anvil
Orichalcum AnvilOrichalcum Anvil
Life AlloyLife Alloy5
Core of CalamityCore of Calamity2


  • The Omniblade is one of the three weapons capable of inflicting Whispering Death, making it a potentially useful asset for applying the debuff, before switching to a different weapon.
  • Its immense base critical strike chance makes it easy for the right accesory or armor setup to bring it to 100%, effectively doubling its damage.


  • 'Omnir' in the tooltip is a reference to Omnir, the creator of Omnir's mod, one of the first highly popular Terraria mods.


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
    • Now uses 5 Life Alloys and 2 Cores of Calamity in its recipe instead of 20 and 10.
    • Decreased sell price from 16 Gold Coin to 12 Gold Coin.
  • Nerfed use time from 10 to 12, but removed its melee swing speed nerf.
    • Now receives an additional damage bonus that scales with the player's melee swing speed stat with a 1:4 ratio.
    • Buffed damage from 63 to 100.
    • Reworked, now uses a holdout projectile that slashes in front of the player.
  • Now only gains 25% of melee swing speed boosts.
  • Removed the word, "Points" from tooltip.
    • Buffed damage from 80 to 84.
    • Now uses Katana in its recipe.