Striga's Urge

"The mixture of a striga's heart with common ingredients results in a mutagenic potion which, when consumed, strengthens a witcher's abilities, making him even more deadly."

When imbibed, Striga's Urge, a mutagenic potion adds one Bronze Talent and one Silver Talent, which can be used to acquire enhancements.

Source

• Striga's Urge

Potions in The Witcher
Regular potions	Bindweed Black Blood Blizzard Cat De Vries' Extract Full Moon Golden Oriole Kiss Maribor Forest Perfume Petri's Philter Shrike Swallow Tawny Owl Thunderbolt White Honey White Raffard's Decoction Willow Wives' Tears Wolf Wolverine
Mutagenic potions	Dagon Sap Frightener's Vision Golem's Pith Hellhound's Soul Kikimore's Ire Koshchey's Core Striga's Urge Werewolf's Wrath Zeugl's Vigor
Miscellaneous	Fisstech Lycanthropy potion Potion for Triss White Gull