Whetstone Knife is a Key in Elden Ring.
Whetstone with a cipher inscription, made to look like a small knifeblade.
Allows the use of ashes of war at a site of grace to bestow new battle arts and affinities to armaments as skills.
The battle arts and affinities will depend on the ashes of war used.
Elden Ring in-game description
Whetstone Knife Location
Additional Insights Into Whetstone Knife
- Effect: Can add new battle arts and affinities to weapons
- Rarity: Rare
- Sell Value: 0 Runes
- Whetstone Knife can be traded.
- On-Hand Capacity: 1
- Storage Capacity: 1