The Witcher 3: Wild Hunt · Consumable
Foglet Decoction Decoction
Foglet Decoction increases Sign intensity during cloudy weather. Ingredients are blowball, dwarven spirit, foglet mutagen, and Fool’s Parsley leaves. The source lists no fixed diagram location and says it is random loot.
Source context
All Decoctions · The Witcher 3; edition unspecified
Values follow the linked reference and its listed mode or variant. Unknown upgrade costs remain unspecified.