Doku No Ken

Doku No Ken

Shiny Doku No Ken
Doku Slash

Doku Slash Shiny
Stuck in the maw of the Son of Arachna, this Katana is coated in the creature’s poisonous venom. In the hands of the right person, this is a truly deadly weapon.


Tier UT
Shots 1
Damage 125–155 (average: 140)
Projectile Speed 13 tiles/second
Lifetime 0.4 seconds
Range 5.2 tiles
Amplitude 0.5 tile(s)
Frequency 1 cycle(s)/shot
Effect(s) Piercing Shots hit multiple targets
Rate of Fire 120%
Reactive Proc On Shoot: Release a poison burst
  • Total Damage: 1,000
  • Radius: 6 tiles
  • Duration: 6 seconds
  • Cooldown: 3 seconds
  • Power Level 193
    XP Bonus 6%
    Feed Power 800
    Forging Cost 45 Rare Material / 90 Common Material / 400 Forgefire / 1 Mark of the Son of Arachna
    Dismantling Value 15 Rare Material / 30 Common Material
    Unlock Slot Cost 1750 Purple Dust

    Blueprint Doku No Ken Blueprint
    Obtained Through Grand Bazaar ( Fame 5175 /  Realm Gold 575)

    Game animation
    Note: The in-game projectile color is different from the tool used.

    UT. Doku No Ken animation

    This Katana does not shoot a straight shot; the shots move in a sine wave pattern, but they will true at the middle and end of the range.

    Without the poison burst, it strongly rivals the DPS of the Masamune, but stands no chance against stronger UTs like the Celestial Blade. Although only doing slightly more DPS than the Masamune, it can be helpful due to its longer range. However, the player will need to get accustomed to the wavy shot.

    As of Exalt Version (Dec 2020), the Doku also possesses a secondary poison burst that detonates every 3 seconds while firing, poisoning enemies for a significant amount of damage that ignores defense and even invulnerability if the target was hit before going invulnerable. Because of its large radius and rather frequent activation rate, this ability gives Doku even greater crowd-clearing abilities while boosting its DPS against single targets.

    With two poisons hitting the target, it will add 333.33 DPS, giving Doku an edge over the Sadamune until 106/165/125 DEF (33/78/51 with Berserk and Damaging). Keep in mind, however, that this requires timing to properly apply each poison; additionally, the wavy shot pattern may make some shots miss, as opposed to Sadamune’s more reliable straight shot.

    On a Ninja or Kensei, Kusanagi outdamages the Doku completely, making it a preferable choice for DPS and straight shooting. In contrast, on a Samurai, Doku outdamages Kusanagi until 15 DEF.

    This katana was considered the best katana in the game before Patch 27.7.X10.3 (Feb 2017), because its DPS and range clearly beat out the Masamune. In said release, it was nerfed from its original damage range of 130-150 and its original rate of fire of 125% to their current values.

    Before Exalt Version (Dec 2020), this item had no poison proc, and had the following sprites:
    Doku No Ken (old)Poison Katana Slash

    Before Exalt Version (Aug 2021), this item was soulbound.

    Before Exalt Version (Mar 2022), this item dealt 120-150 damage.

    Its name translates to “Sword of Poison” from the Japanese kanji “.”