Elden Ring: How To Get Radagon's Soreseal

gamerant.com:

There are few items in Elden Ring that just about every player has used at some point in a playthrough. Perhaps the most famous of these items is the Mimic Tear Spirit Ashes, which lets players summon an exact duplicate of themself as a combat ally. Second to this, then, is surely Radagon's Soreseal.

Elden Ring: Best Talismans, Ranked

It's hidden relatively deep into the game in a high-level zone surrounded by enemies that make mincemeat of low-level players. Despite this, Radagon's Soreseal is still one of the easiest, yet most overpowered, items to get in Elden Ring. In fact, with a little careful planning, it's easier to get this Talisman than the downgraded version, Radagon's Scarseal.

Radagon's Soreseal gives a massive +5 boost to four stats – Strength, Dexterity, Vigor, and Endurance. These are all stats that just about every build uses, aside from perhaps pure-caster builds, and the bonus to Vigor and Endurance helps to offset the major drawback of this Talisman: increased incoming damage.

While equipped, Radagon's Soreseal makes players take 15% more damage from all sources. This is somewhat offset by the increased HP and Equip Load, which gives players more wiggle room for heavier armor. Ultimately having 20 free levels in four of the most relevant stats in the game is pretty fantastic – and when it's equipped at low levels, those extra 20 levels matter even more.

Radagon's Soreseal is found in Fort Farroth, located in the northern half of Caelid, Greyoll's Dragonbarrow. You can get here from the beginning of the game — head to the Third Church of Marika (after getting Torrent) and look for a portal in the bushes to the northeast. Take this portal to get to the Bestial Sanctum, in the north of Greyoll's Dragonbarrow.