Unidentified poisonous lichen

A type of lichen grew on the planet Parnassos. The warrior Phasma realized that it was the source of a poison affecting her clan, the Scyre. She went on to use the lichen toxin on her knife against Balder, the leader of the enemy Claw clan and, years later, against Captain Cardinal, her First Order rival.

Text and facts from the “Unidentified poisonous lichen” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.