Effects: When imbibed this mutagenic potion adds one Gold Talent, which can be used to acquire enhancements.

Preparation: The potion is made by mixing a koshchey's heart with ingredients providing one measure of aether and two measures of hydragenum; strong, high quality alcohol must be used as a base.

Duration: Instantaneous

Toxicity: None

By using the heart of a koshchey - a legendary alchemical component - a witcher can create a powerful potion which deepens the process of mutation begun during the Trial of the Grasses.