Elden Ring Smithing Stones are vital for upgrading your weapons so you can deal that little bit of extra damage to cope with harder early game areas like Caelid and Liurnia. If there's one surefire way to make a boss easier, it's to deal more damage, and that's essentially what Smithing Stones let you do.
There are two variants to be found throughout the game; regular Smithing Stones which are used to upgrade regular weapons, while Somber Smithing Stones are required for unique weapons, such as those you'd get with a boss remembrance. Early on, you can find both stones in the tunnel dungeons and as drops from particular enemies, but eventually you'll want to unlock them for purchase using a Bell Bearing.
