An Elden Ring wiki
Whetstone Knife
This little tool lets you apply Ashes of War to your weapons at any Site of Grace, changing their weapon skill and, when the Ash of War allows it, their affinity. Which affinities you can pick depends on the Ash of War and on which whetblades you have found.
Attack power
Guarded damage negation
Weapon skill
Passive effect
Damage negation
Resistance
Special effect
Effect
Can add new battle arts and affinities to weapons
Upgrades / variants
Skill effect
Compatible weapon types
Abilities
Where to find it
In a chest in the underground cellar at the Gatefront Ruins in Limgrave, together with the Storm Stomp Ash of War.
Item description & lore
Notes & tips
- You do not need a smith to swap weapon skills; once you have the knife you can do it yourself at a grace.