Weaponmajor

Black Knife

Black Knife is a unique Faith/Dexterity dagger dropped by the assassin guarding Sainted Hero’s Grave. Its Blade of Death skill fires a Destined Death projectile that temporarily reduces maximum health and applies lingering damage.

Importance
major
BK
Elden Ring · weapon
01

Key Takeaways

Black Knife is a unique dagger whose value comes less from ordinary melee reach than from Blade of Death, a weapon skill that projects a ranged slash and applies a temporary maximum-HP reduction effect. Its fixed skill and Faith requirement make it a specialized choice rather than a generic dagger upgrade.

01

A dagger with a ranged signature skill

Blade of Death lets Black Knife threaten targets beyond normal dagger range, giving it a distinct ranged option while retaining the fast close-range moveset expected of the dagger class.

02

Its defining effect is strongest against durable targets

The skill's projectile deals immediate damage and applies an effect that reduces the target's maximum HP and continues draining HP for a limited duration, making successful openings especially valuable against high-health enemies.

03

Faith investment is part of the weapon's build requirement

Black Knife is not a Dexterity-only dagger: its requirements and scaling include Faith, so its skill and overall use fit hybrid Dexterity/Faith characters more naturally than purely physical dagger builds.

04

Acquisition is gated behind an optional sealed area

The dagger is found in the Sainted Hero's Grave area of Altus Plateau, in a sealed side section that requires the appropriate Stonesword Key access rather than being a normal early-game pickup.

05

Its main limitation is dagger reach and fixed customization

Black Knife remains short-ranged in ordinary attacks, and its unique weapon skill cannot be replaced with an Ash of War or affinity, limiting its flexibility compared with infusible daggers.

06

It uses the unique Somber reinforcement path

As a unique weapon, Black Knife is upgraded with Somber Smithing Stones and follows the special-weapon reinforcement path, while its distinctive Blade of Death skill remains fixed.

07

Reduvia is a different ranged-dagger alternative

Reduvia also offers a ranged weapon skill, but its identity is built around blood loss rather than Black Knife's maximum-HP reduction effect, so the two daggers serve different status and build priorities.

02

Overview

Black Knife is a unique dagger in Elden Ring, defined less by ordinary close-range damage than by Blade of Death, a weapon skill that projects a mark of destined death and temporarily weakens the target’s maximum HP while inflicting continuing damage.

As a Somber-reinforced dagger, Black Knife occupies a specialized place among Elden Ring’s unique weapons. Its ordinary attacks retain the fast, close-range profile expected from the dagger class, but the weapon’s identity comes from its skill rather than from a flexible Ash of War setup. That makes it a deliberate choice for players who want a mobile melee weapon with a ranged opening attack and a distinct health-reduction effect.

Blade of Death allows the wielder to pressure an enemy without remaining in immediate melee range. The projected attack is especially important against targets that are dangerous to approach or that create openings only briefly. Its continuing damage and maximum-HP reduction are conditional effects of the skill, not universal properties that should be treated as part of every Black Knife attack. The weapon therefore rewards deliberate skill use rather than simple light-attack repetition.

Black Knife also differs from more conventional daggers because it is a fixed, named weapon associated with the Night of Black Knives and the Rune of Death. That connection gives it a stronger narrative identity than a standard dagger or an ordinary infusable sidearm, while its unique weapon skill limits the customization available on weapons that can freely accept Ashes of War. Its role is consequently closer to a specialized assassination tool than a blank foundation for experimenting with affinities.

The weapon belongs to Elden Ring’s base-game arsenal and is not a Shadow of the Erdtree-exclusive variant. It is encountered through content connected to the Black Knife assassins, making it a later-discovered option than the common daggers available early in the journey. Black Knife is most distinct when its skill’s projectile, health-reduction effect, and fast dagger moveset are considered together; it should not be presented as a universal replacement for ordinary daggers, bleed-focused options, or other weapons chosen for broader affinity and skill flexibility.

03

Statistics

Elden Ring publishes no 0–100 stat bars, so this page lists the verified requirements, scaling and handling figures instead. Taken from the project's verified weapons database, not from generated text.

  • Category
    Daggers
  • Damage Type
    Slash/Pierce
  • Primary Scaling
    Dex C / Arc D
  • Weight
    3
  • Skill
    Black Knife
  • Str Req
    10
  • Dex Req
    18
  • Arc Req
    10
  • How to Obtain
    Alberich, drop after killing him in Roundtable

Figures verified against Consolidated Game Weapons Database.

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Compared to similar daggers

WeaponStr ReqDex ReqWeightPrimary Scaling
Black Knife10183Dex C / Arc D
Wakizashi9153Dex C
Reduvia8133.5Dex D / Arc C
Scorpion's Stinger8202.5Dex C
Cinquedea10182.5Str D / Dex D

Requirements, scaling grades and weight are the game’s own published figures. From Consolidated Game Weapons Database.

05

How to Obtain

Before you start
  • Access to Liurnia of the Lakes and Black Knife Catacombs.
  • The Black Knife Assassin encounter must be found behind the dungeon's illusory wall; no quest completion, DLC, or NG+ requirement is needed.
  • The weapon is obtainable in the base game and is not permanently missable through a required quest route.
  1. 01Travel to Black Knife Catacombs in northeastern Liurnia of the Lakes. The catacomb entrance is reached from the eastern side of the lake region, and entering the dungeon does not require a quest, DLC, or a special weapon-related prerequisite.
  2. 02Explore Black Knife Catacombs until you reach the optional Black Knife Assassin encounter. The Assassin is concealed behind an illusory wall in the dungeon rather than being the catacombs' primary boss, so defeating the Cemetery Shade alone does not award this weapon.
  3. 03Defeat the Black Knife Assassin behind the illusory wall. The Black Knife is a guaranteed reward from this encounter; it is not purchased from a vendor and does not come from a random enemy drop. The reward is available once per playthrough, with another copy obtainable in a subsequent NG+ cycle.
06

Availability

Base game — standard playthroughAvailable

Requires Access to Altus Plateau and one Stonesword Key

The Black Knife is not DLC-exclusive, vendor-stocked, or tied to a character-stat requirement. Its availability is gated by reaching the relevant Altus Plateau dungeon area and opening the sealed side room.

New Game PlusAvailable again

Requires Reach the relevant Altus Plateau area in the new cycle and have one Stonesword Key

The weapon can be reacquired during a subsequent cycle; the prior cycle's acquisition does not permanently remove it from the new playthrough.

07

Mechanics and Handling

Black Knife is a fast dagger whose defining feature is Blade of Death, a weapon skill that gives a close-range weapon a meaningful ranged attack. Its ordinary attacks remain short, quick and commitment-light, while the skill changes how the weapon can begin an engagement or pressure an enemy that is unsafe to approach. The knife is therefore handled less like a pure critical-hit sidearm and more like a mobile dagger with a distinctive opening tool.

Dagger moveset and spacing

The standard moveset follows the quick, compact pattern expected from a dagger: rapid thrusting attacks with limited reach and little room for correcting a mistimed swing. Black Knife works best inside an enemy's guard rather than at the edge of weapon range. Its short attacks make sidestepping and repositioning relatively easy, but they also make spacing errors costly; a target that backs away can leave the knife unable to connect where a longer weapon would still reach.

Light attacks are useful for brief punish windows and for maintaining pressure after an opening. Heavy attacks provide a more committed thrust, while running, jumping and crouching attacks preserve the dagger's emphasis on direct, close-range contact rather than wide area coverage. The weapon does not gain a broad sweeping pattern that compensates for its reach, so crowd control depends on positioning, target selection and the player's other equipment.

Blade of Death

Blade of Death is Black Knife's fixed weapon skill. It launches a distinctive projectile that damages the target from a distance and applies a temporary maximum-HP reduction effect, followed by damage over time. This is the weapon's central handling distinction: the attack can affect an enemy before the knife itself is in striking range, and the debuff makes a successful hit matter beyond its initial impact.

The skill consumes FP, so repeated use is constrained by the character's available resource rather than stamina alone. It is most useful when an enemy is approaching, recovering from an action or otherwise exposed to a deliberate ranged cast. Because the projectile is a skill attack rather than a normal dagger strike, it should not be treated as a replacement for the ordinary moveset in every exchange. After using it, the player still has to close distance and exploit the opening with the knife or another attack.

Blade of Death is not interchangeable with the Black Knife Tiche Spirit Ash's version of the same named attack. Tiche's use belongs to that summon and should not be used to infer additional attacks or properties for the weapon.

Handling limits and practical use

Black Knife has no reload, ammunition or durability cycle to manage in ordinary play. Its practical resource concern is FP for Blade of Death, alongside the stamina and positioning demands shared by melee attacks. The weapon's compact moveset can punish exposed targets quickly, but its short reach and lack of a large sweeping attack make careless trades and surrounded fights poor situations for it.

A useful rhythm is to open with Blade of Death when the target can be safely lined up, then approach only after the enemy's response creates a punish window. Against a single vulnerable enemy, the skill's maximum-HP reduction and damage-over-time effect reward landing it early rather than saving it for the end of the fight. In close quarters, ordinary dagger attacks are more reliable when the player is already within range; spending FP is not automatically preferable to taking a safe melee opening.

08

Upgrades and Variants

09

Strengths, Weaknesses and Best Uses

Strengths

  • Blade of Death gives this dagger a ranged option: its skill launches a projectile that deals holy damage instead of requiring every attack to be made at dagger distance.
  • The skill also applies a maximum-HP reduction and continuing HP loss to susceptible targets, making it useful for opening an encounter or maintaining pressure while repositioning.
  • Its dagger moveset supports quick close-range attacks, while the weapon’s physical/holy damage profile and Faith scaling give it a natural role in Dexterity/Faith setups.
  • As a unique Somber weapon, Black Knife provides its signature skill without requiring an Ash of War choice or affinity setup.

Weaknesses

  • The dagger’s short melee reach makes ordinary attacks dependent on close spacing and offers less room for error than longer weapons.
  • Its split physical/holy damage can lose efficiency against enemies with strong defenses in either damage type, particularly targets resistant to holy damage.
  • Blade of Death consumes FP and has a committed skill animation; the projectile can be avoided or fail to connect if the target moves out of its path.
  • Black Knife’s fixed skill and unique upgrade path limit customization compared with an infusible dagger that can change Ashes of War or affinities.

Best uses

  • Use it in PvE against bosses and other durable targets that are susceptible to Blade of Death’s maximum-HP reduction and damage-over-time effect.
  • Use the skill to contribute ranged damage during openings, recovery windows, or repositioning rather than relying exclusively on the dagger’s short melee reach.
  • It suits Dexterity/Faith characters that want a light sidearm with a distinctive ranged pressure tool; it is less attractive for builds centered on pure physical damage or extensive Ash of War customization.
  • In encounters featuring holy-resistant enemies, treat Black Knife primarily as a debuff-and-utility weapon or switch to a better damage-matched alternative.
10

Compared With Similar Weapons

Compared With Similar Weapons
WeaponClass and roleSignature mechanicBuild and progression profilePrefer it when…
Black KnifeBlade of Death launches a ranged projectile, deals damage over time, and temporarily reduces the target's maximum HPSomber-upgraded dagger with a fixed skill; its value is tied to the skill and its holy damage profile rather than Ash of War customizationYou want a mobile dagger with ranged pressure and a strong opening tool against durable PvE targets—
Blade of CallingBlade of Gold projects a holy blade and creates a follow-up shockwave at the impact areaSomber-upgraded dagger with a fixed skill; it offers a similar ranged holy-specialist concept but a different skill effectYou prefer a Faith-focused alternative whose skill adds an area-impact component—
ReduviaReduvia Blood Blade fires ranged blood projectiles and supports Hemorrhage buildupSomber-upgraded unique dagger with a fixed skill; its identity is status pressure rather than Black Knife's maximum-HP reductionYou are building around Hemorrhage and want repeated ranged bleed pressure—
MisericordeIts defining advantage is exceptional critical damage, making ripostes and backstabs central to its useRegular-upgrade dagger with Ash of War and affinity flexibility; it is more customizable but lacks Black Knife's dedicated ranged skillYou plan around stance breaks, parries, backstabs, or critical-focused burst instead of a fixed ranged attack—
Scorpion's StingerInnate Scarlet Rot buildup gives it a status-focused role distinct from Black Knife's Blade of DeathSomber-upgraded dagger with a fixed skill and a specialized status identityYou want Scarlet Rot application and close-range status pressure rather than Black Knife's ranged opener—
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Used In

  • Black Knife CatacombsThe Black Knife is found in this dungeon, behind an Imp Seal door requiring a Stonesword Key.
  • Black Knife AssassinBlack Knife Assassins wield Black Knives and use the dagger's signature Death skill in combat.
  • Alecto, Black Knife RingleaderAlecto is a Black Knife Assassin who carries and uses a Black Knife during her boss encounter.
  • Night of Black KnivesThe dagger is associated with the assassins who stole the Rune of Death and slew Godwyn the Golden during this event.
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Lore and Design

Black Knife lore is tied directly to the Night of Black Knives, the conspiracy in which Godwyn the Golden was assassinated. Its item text identifies the weapon as one of the daggers used by the assassins and states that its blade was imbued with a stolen fragment of the Rune of Death. This connects the weapon to the first recorded deaths of a demigod and to the events that reshaped the Lands Between.

The Black Knife Assassins are described elsewhere as women of Numen origin who were rumored to have close ties to Queen Marika. The game does not establish every detail of that relationship, so those descriptions should not be expanded into a definitive account of their allegiance or origins. Ranni is explicitly associated with the Night of Black Knives and the theft of a fragment of the Rune of Death, but the weapon's item text does not by itself establish that she personally wielded this particular Black Knife.

Its unique skill, Blade of Death, reinforces the weapon's narrative identity: it projects a red-black blade of death that temporarily reduces an enemy's maximum HP and inflicts continuing damage. In gameplay terms, this makes the Black Knife a named relic of the conspiracy rather than merely another dagger; in story terms, it echoes the wound inflicted on Godwyn. That parallel is supported by the weapon's text and effect, but it should not be treated as proof that the dagger contains Godwyn's remains or has an additional undocumented connection to him.