The Witcher 3: Wild Hunt · Consumable
Water Hag Decoction Decoction
Water Hag Decoction increases damage dealt while Vitality is at maximum. It requires Water Hag mutagen, Berbercane Fruit, and Dwarven spirit; its diagram is sold by the Herbalist near the Hierarch Square signpost.
What to consider
The damage increase depends on keeping Vitality at maximum.
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.