Mage bane comes from a dark crimson orchid. When dried and ground into a powder and mixed with striped toadstool, it creates a poison that makes it extremely difficult for a creature under its effects to cast spells or spell-like abilities.
Type poison (contact); Save Fortitude DC 20
Onset 1 minute; Frequency 1/minute for 6 minutes;
Effect -10 to all caster level checks for 1 hour; Cure 2 consecutive saves.
Cost: 500 gp per dose (powder).