Pronounced Zug-t'moy
AKA the Lady of Rot and Decay, a lesser-known demon lord from the Abyss who uses her spores to infect people and turn them into mind-controlled slaves.
AKA the Great Seeder by infected myconids, she is using them to spread her disease and build an army of servants. Her current base is Yggmorgus in Neverlight Grove.