Dagger once belonging to one of the assassins who murdered Godwyn the Golden on the Night of the Black Knives. A ritual performed on the oddly misshapen blade imbued it with the power of the stolen Rune of Death.

This is a drop from defeating the Black Knife Assassin at the entrance of Sainted Hero's GraveGrace, in Altus PlateauGrace. This boss is directly west of the Rampartside PathGrace site. Black Knife can be upgraded by using Somber Smithing Stones. This weapon can't be infused with Ashes of War. Can't be enchanted with Magic or boosted by Consumables. This weapon has a unique R2 chain attack shared with the Blade of Calling, Erdsteel Dagger, and Fire Knight's Shortsword that performs quick double slashes. You can get to this weapon without fighting any other bosses and cheese her by running behind the elevator. She will attack twice at most then despawn for a free backstab, repeat until dead. (you can also head down the elevator to get the despawn risk free but it takes longer) (tip from MonkeyMeat12, copied from below. ). While this weapon is primarily designed with Dex Faith builds in mind, the Blade of Death projectile's damage is only affected by Faith scaling, meaning that a Strength Faith build utilizing Maliketh's Black Blade or the Black Blade incantation can still benefit from this weapon solely for the weapon skill alone. This weapon may have drawn inspiration from an African hybrid knife/axe known as the mambele. Sell Value: 100.