Attention to anonymous and newly-registered users: Commenting has been suspended on all FANDOM Wikis for the foreseeable future. If you wish to make comments on articles please make an account and wait the 4-day autoconfirm period. We apologize for the inconvenience.
FINNER (talk), 17:08, 4 May 2022 (UTC)



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-bladed greatsword when equipped with Heavy Blade stances, or wielded as two separate blades when using Dual Sword stances.


This weapon deals primarily DmgPunctureSmall64.png Puncture damage in dual sword form and primarily DmgRadiationSmall64.png Radiation damage in heavy blade form.





The Dark-Split Sword's blueprint can be researched from the Tenno Lab in the dojo.

Manufacturing Requirements
Mutagen Mass.png
Time: 12 hrs
Rush: Platinum64.png 35
MarketIcon.png Market Price: Platinum64.png 225 Blueprint2.svg Blueprints Price:Credits64.png15,000
Tenno Lab ResearchClanAffinity64.png3,000
Time: 48 hrs
Prereq: Nami Skyla
Ghost Clan x1   Shadow Clan x3   Storm Clan x10   Mountain Clan x30   Moon Clan x100


  • Without any stance equipped, the Dark Split-Sword is used as a Heavy Blade weapon by default.


  • Heavy Blade and Dual Sword stances do not share any polarities, meaning players are forced to commit to either one of the two weapon types.
    • Alternatively, players can remove the stance slot's polarity with a Forma at the cost of capacity points.
    • Moreover, players can use a Stance Forma in order to add either Heavy Blade or Dual Sword stance mods with no consequences.


  • 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 DarkSword.png Dark Sword and a DarkDagger.png Dark Dagger. This can be seen when equipping a dual swords stance.
  • The Dark Split-Sword is the first weapon from the Tenno Lab to require Mutagen Masses to craft.
  • On the Release of Update: Lunaro (2016-06-15) on PC, 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 Skins Edit

Patch History[]

Update 31.5 (2022-04-27)

  • Fixed the Dark Split Sword (Dual Blades weapon type) being able to equip holster styles from various other weapon types.

Update 30.7 (2021-09-08)

  • Fixed inability to use Stance Forma or Umbra Forma on the Dark Split-Sword.

Hotfix (2020-07-14)

  • Fixed a crash that could occur for the new Host of an Archwing mission due to prior Host migration if they had the Dark Split-Sword equipped.

Hotfix 27.3.8 (2020-04-02)

  • Fixed inability to Polarize the Dark Split-Sword with Stance Forma or Umbra Forma.

Hotfix 26.0.7 (2019-11-14)

Dark Split Sword (Heavy Blade)
  • Increased Critical Chance from 10% to 15%.
  • Increased Puncture Damage from 68 to 78.
  • Slam Attack increased from 180 to 690.
  • Slide Attack increased from 180 to 460.

Update 26.0 (2019-10-31)
Actual patch notes made a mistake on heavy blade mode follow through.

Dark Split Sword
  • Mastery Rank increased from 0 to 5.
  • Damage increased from 65 Radiation to 116 (56 Puncture, 28 Slash, and 32 Radiation).
  • Range increased from 1 to 2.4.
  • Slam Attack increased from 130 to 232.
  • Slide Attack decreased from 390 to 232.
  • Parry Angle set to 60.
  • (Undocumented) Follow Through decreased from 0.6 to 0.5.
Dark Split-Sword (Heavy Blade)
  • Damage increased from 90 Radiation to 220 (68 Puncture, 52 Slash, and 100 Radiation).
  • Range increased from 1.45 to 2.8.
  • Slam Attack increased from 180 to 660.
  • Slide Attack increased from 180 to 440.
  • Parry Angle set to 55.
  • Follow Through decreased from 0.9 to 0.6.

Hotfix 22.20.5 (2018-05-24)

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

Hotfix 21.0.8 (2017-07-13)

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

Update 19.0 (2016-11-11)

  • 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 (2016-10-27)

  • Fixed incorrect entries for the Dark Split-Sword in player profile.
  • Conclave: Reduced the damage of the Dark Split Sword in the two handed form.

Update: The Silver Grove (2016-08-19)

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

Update: Specters of the Rail 0.0 (2016-07-08)

  • 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 (2016-06-09)

  • 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.
  • Dark Split-Sword can now be used in the Conclave.

Hotfix 18.14.1 (2016-06-08)

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

Update 18.14 (2016-06-08)

  • Introduced.

Last updated: Hotfix 26.0.7 (2019-11-14)

See Also[]