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Cobalt Sword
  • Cobalt Sword item spriteold Cobalt Sword item sprite
Stack digit 1.png
Damage39 / 34 (Melee)
Knockback3.85 (Weak)
Critical chance4%
Use time23 (Fast)
RarityRarity level: 4
Research1 required

The Cobalt Sword attacking Target Dummies. Note how the long range allows for the reach of multiple Dummies.

The Cobalt Sword is a Hardmode sword crafted solely using Cobalt Bars, and lies at the lowest tier of Hardmode ore swords along with the Palladium Sword. Like other Hardmode ore swords, it is capable of autoswing. It can also swing faster than all of the other Hardmode ore swords.

Its best modifier is Legendary.



ResultIngredientsCrafting station
Cobalt SwordCobalt Sword (Console versionOld-gen console versionMobile version3DS versionSwitch versiontModLoader version)Iron AnvilIron Anvil
Lead AnvilLead Anvil
Cobalt SwordCobalt Sword (Desktop version)
total: 2 row(s)


  • It might be advisable to skip the Cobalt Sword because of its lackluster stats compared to Phasesabers and the pre-Hardmode Night's Edge. Compared to Phasesabers, the Cobalt Sword only has slightly higher knockback, while the only disadvantages the Night's Edge has are its complicated crafting as well as (outside of the Desktop version Desktop version) its slow use and lack of inherent autoswing.


  • The Cobalt Sword bears a strong resemblance to the Muramasa and the Japanese Katana, and fits with the "Feudal Asia" theme of other Cobalt weapons and armor.
    • The Cobalt Sword has the fastest speed of all Hardmode Ore swords. This may be because it resembles the real-world Katana, a very light, thin blade (which is also in Terraria).


  • Desktop 1.4.1: Cobalt Bars needed to craft decreased from 10 to 8.