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The Somber Ancient Dragon Smithing Stone is a legendary bolstering item in Elden Ring, capable of strengthening armaments to their maximum potential. Unlike other smithing stones, there is only a finite amount you can found during each journey.
Using a Somber Ancient Dragon Smithing Stone, you can increase the power of a special weapon from +9 to +10. For normal weapons, an Ancient Dragon Smithing Stone must be used to increase power from +24 to +25
For a detailed list on the locations of all 8 Somber Ancient Dragon Smithing Stones, see our guide to All Somber Ancient Dragon Smithing Stones. For a quick rundown, see the list below: