The Witcher Bestiary - Bruxa
Bruxa Occurrence: Bruxae choose to live in ruins and abandoned human settlements, more rarely in caves and grottos.

Immunity: They are fearless and resistant to stun attempts.

Susceptibility: Sensitive to silver and Vampire Oil.

Tactics: They attack by surprise, try to daze their victims and drink their blood.

Alchemy: Abomination lymph, Naezan salts, and bruxa blood.

It is said that at night bruxae haunt attractive young men and drink their blood. These vampires move quietly in the dark to suddenly emerge near their victims. Bruxae may take the form of beautiful girls, leading some to mistake them for water-nymphs, but their long fangs and unrestrained thirst for blood always betray them.