Mage's kintal

injury (mixture) - 700 gp
MixtureThis poison which requires among other things many small scorpions for its preparation cuts the vocal cords of the victim. This substance is mostly used against wizards and other spellcasters.
A creature subjected to this poison must succeed on a DC 18 Constitution DC 19 saving throw or be unable to produce a sound until the end of its next long rest.
Recueil des poisons d´AideDD
  1. DnD 5e Poisons › Mage's kintal