Monster brain

Relic Crafting component.

Dropped by

Bears1%Cloud Giant1%Cyclopses1%Chorts2%Silver Basilisk9%Basilisks9%Cockatrices4%Forktails2%Wyverns3%Fiends1%Foglets4%Ghouls1%Alghouls1%Ice Giant3%Ice Elementals1%Rock trolls4%Grave hags2%Water hags1%Griffins4%Harpies2%Erynias5%Ekimmaras5%Katakans2%Botchlings4%Nekkers5%Scurvers5%Rotfiends6%Sirens3%Salma4%Werewolves2%Ulfhedinn2%Hounds of the Wild Hunt6%Alps1%Protofleders2%Bruxae1%Slyzards1%Shaelmaars1%Wights1%Spotted Wights1%Golyat4.17%Garkains1%Fleders1%Slyzard Matriarchs1%

Can turn up in

Chests and containers in Toussaint2Chests and containers in Velen and Novigrad1

LongclawSmithx1Beann'shieSmithx1Griffin steel swordSmithx1WeeperSmithx1Griffin silver swordSmithx1Ursine silver swordSmithx1Feline trousersArmorerx1Enhanced Feline trousersArmorerx1Mastercrafted Griffin armorArmorerx1Superior Ursine trousersArmorerx1Mastercrafted Ursine trousersArmorerx1Lesser Perun runestoneCrafterx1Grandmaster Ursine steel swordSmithx1Legendary Manticore steel swordSmithx1Manticore silver swordSmithx1Legendary Manticore armorArmorerx1Grandmaster Griffin trousersArmorerx2Wolven steel swordSmithx1Wolven silver swordSmithx1Mastercrafted Wolven armorArmorerx1Legendary Wolven steel swordSmithx1Legendary Wolven silver swordSmithx1Mastercrafted legendary Wolven armorArmorerx1Viper venomous steel swordSmithx1Viper venomous silver swordSmithx1