Task Finder
...
The Lightning Scorpion Charm is one of the Talisman items in Elden Ring that can increase damage when worn.
The Lightning Scorpion Charm can be obtained in the Wyndham Catacombs that border the Altus Plateau and Mt. Gelmir. Inside the dungeon, you can find them past an imp sealed room that requires a Stonesword Key to open.
The Lightning Scorpion Charm increases Lightning damage dealt by around 12%, but increases Physical Damage taken from NPC enemy sources by about 10%.