||A yellow mold colony is only found dark locations with moisture or high humidity. It is immobile and looks like a thin layer (5mm to 1cm thickness) of fuzzy yellow mold growth on any surface (ground, wall, ceiling).
If disturbed, or if it senses a possible host, it will release a cloud of spores, which fills a 4 meter cube with visible spores that are less than 1mm in diameter.
Creatures in the spore cloud must succeed at an Evade check to avoid breathing in any of the spores. If the Evade fails, the creature must then succeed on an Endurance check or become nauseated for 1d4 hours (treat as a poison).
Yellow mold is immune to Cold, Electricity, and physical damage, but is susceptible to Fire and Acid.