The Witcher 3: Wild Hunt · Consumable
Doppler Decoction Decoction
Doppler Decoction increases critical hit damage when striking enemies from behind. Ingredients are doppler mutagen, dwarven spirit, Han fiber, and longrube. During Wandering in the Dark, the source says to read The Bear Legend in the Midcopse laboratory for the diagram.
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.