Lourna Dee (pictured) commissioned the poisoner to formulate a unique variety of nerve toxin.
During the High Republic Era, a poisoner made their home on Nar Shaddaa, a moon in Hutt Space. The Nihil Tempest Runner known as Lourna Dee tasked this poisoner with the creation of a special nerve toxin for her usage in raids, an event that occurred around 232 BBY. In that year, Dee donned a gas mask to protect herself from the nerve toxin as she entered the hold of a Nihil ship following the capture of Jedi Master Loden Greatstorm and the miner Ottoh Blythe. She considered her employment of the poisoner, noting mentally that she had kept the toxin a secret from the other Tempest Runners.
The 2021 novel The High Republic: Light of the Jedi, penned by Charles Soule, featured a mention of the poisoner. This novel forms part of Phase I of the Star Wars: The High Republic multimedia project.