Fiend Decoction is a Decoction in The Witcher 3: Wild Hunt. There are Standard, Enhanced and Superior versions of this potion.
- Effect: Increases the amount of weight the witcher can carry without being overburdened.
- Toxicity: 80
- Duration: 30 minutes
- Alcohol Used to Refill: ?
- Location: Can be found in the cave during the "Missing Brother" contract.