Use as a devastating heavy sword or apply a Dual Melee stance and split the weapon into two ferocious blades.

The Dark Split-Sword is a melee weapon with the unique ability to change weapon type depending on the Stance mod with which it is equipped: a double-ended greatsword when equipped with Heavy Blade stances, or wielded as two separate blades when using Dual Sword stances.

Manufacturing Requirements
Time: 12 hrs
Rush: Platinum64 35
MarketIcon Market Price: Platinum64 225 Blueprint2 Blueprints Price:Credits6415,000
Tenno Lab Research ClanAffinity64 3,000
Time: 48 hrs
Prereq: Nami Skyla
LeaderBadgeGhostHolo x1   LeaderBadgeShadowHolo x3   LeaderBadgeStormHolo x10   LeaderBadgeMountainHolo x30   LeaderBadgeMoonHolo x100


This weapon deals Radiation b Radiation damage.



  • Innate Radiation b Radiation damage – less effective against Shields, Infested, and Fossilized.
  • Lowest base damage of all Heavy Blades.
  • Heavy Blade mode has low critical chance.
  • Zenurik Pol stance polarity is incompatible with any of the Heavy Blade stances. Furthermore, Heavy Blade and Dual Sword stances do not share any polarities.


  • Without any stance equipped, the Dark Split-Sword is used as a Heavy Blade weapon by default.
  • Dark Split-Sword (Heavy Blade), compared to Dark Split-Sword (Dual Swords):
    • Higher base damage (90.0 vs. 65.0)
    • Lower critical chance (10% vs. 25%)
    • Lower critical damage multiplier (2.0x vs. 2.5x)
    • Higher status chance (25% vs. 15%)
    • Lower attack speed (0.92 vs. 1.17)
    • Higher block resist (85% vs. 60%)


  • The Dark Split-Sword is the first melee weapon capable of using two different types of Stance mods, in this case Heavy Blade and Dual Sword stances, giving it the ability to use a total of 6 individual Stance mods.
  • The Dark Split-Sword is made up of a Dark Sword and a Dark Dagger. This can be seen when equipping a stance. (see below)
  • The Dark Split-Sword is the first weapon from the Tenno Lab to require Mutagen Masses in crafting.
  • On the Release of the PC Lunaro update, PC Gamer offered a limited time promo code for the Dulus weapon skin, which is essentially a stretched out PC Gamer logo on the sword.


  • Dark Split-Sword in Codex showing its heavy blade form.
  • Dark Split-Sword in its dual swords form.

Dark Split-Sword Skins

Patch HistoryEdit

Hotfix 22.20.5
  • Fixed Dark split Sword appearing as unranked for Clients at the beginning of a mission even though it's ranked.

Hotfix 21.0.8

  • Fixed Dark Split Sword Rivens having no effect when equipped.

Update 19.0

  • Fixed Mods equipped on the Dark Split Sword not staying on the weapon when exiting out of the Arsenal.
  • Fixed incorrect sheathing of the Dark Split-Sword when equipped with a Dual Sword Stance Mod (Crossing Snakes, Swirling Tiger, Dividing Blades).

Update: Recurring Nightmares

  • Fixed incorrect entries for the Dark Split-Sword in player profile.


  • Reduced the damage of the Dark Split Sword in the two handed form.

Update: The Silver Grove

  • Fixed an issue where the Dark Split Sword would show a Mire when being built in the Foundry.

Update: Specters of the Rail

  • Increased Dark Split-Swords Critical Chance while dual wielding by to 25% and Critical Multiplier to 2.5x.
  • Slightly increased the Dark Split Sword dual wield attack speed.
  • Slightly decreased the Dark Split Sword Heavy Blade attack speed.
  • Increased the Dark Split Sword Heavy Blade Element Damage to 90 and Status Chance to 25%.

Hotfix 18.14.2

  • Conclave: Dark Split-Sword can now be used in the Conclave.
  • Visually tweaked the Dark Split-Sword’s Energy trail to fit better on the weapon.
  • Fixed the Dark Split-Sword not listed in the Melee section of the Codex.
  • Fixed ranked Stance Mods equipped on the Dark Split-Sword being un-ranked.

Hotfix 18.14.1

  • Dark Split-Sword can now be sold from Inventory.
  • Fixed the Dark Split-Sword not rewarding Affinity for Clients.

Update 18.14

  • Item introduced.
Last updated: Hotfix

See alsoEdit

WeaponsDamageCompare AllCosmetics

WeaponsDamageCompare AllCosmetics