Nullifying Nightshade

Nullifying Nightshade is a flower that can be used medicinally to create and anti-magic effect and with enough potency can entirely remove someone's ability to cast spells or any curses effecting them.
When the Campaign 2 party met Deyna and Vish, who had hired Diza to protect Vish, Deyna asked them to travel to Kaneko's Shadow to collect nullifying nightshade to cure the curse that was weakening and killing Vish. On the island, they met Ix who was gathering the flower for the Blue Urchin Company.
The Campaign 3 party has a number of connections to nullifying nightshade. ...