The Black Knife in Elden Ring is obtained in Altus Plateau by defeating the Black Knife Assassin outside Sainted Hero’s Grave. The route commonly starts from the Rampartside Path area, then follows the road toward the grave entrance, where the assassin is waiting as a field encounter.

How to get it

  1. Reach Altus Plateau. One guide notes the route is easier if you have access to the Dectus Lift area or nearby Altus graces.
  1. Travel to Sainted Hero’s Grave in the western/northern Altus Plateau path, depending on your route.
  1. Defeat the Black Knife Assassin guarding the entrance.
  1. The assassin drops the Black Knife dagger on defeat.

Weapon details

The Black Knife is a dagger that scales with Dexterity and Faith , and it deals both physical and holy damage. It is also treated as a legendary- quality weapon and can be upgraded with Somber Smithing Stones.

Quick route tip

If you already have an Altus Plateau grace near the area, use that to shorten the run. Otherwise, head through the plateau roads toward Sainted Hero’s Grave and watch for the assassin right by the entrance.

TL;DR: Go to Altus Plateau, find Sainted Hero’s Grave, beat the Black Knife Assassin outside, and the Black Knife dagger drops.