Three times per day, the mold wyrm can cough forth a cloud of greenish-gray spores. Any nonvegetable creature within a 30 x 30 foot area must make a successful saving throw vs. death magic or cough for ld4+2 rounds, suffering ld6 points of damage per round and incurring a -2 penalty on all attack rolls, saving throws, ability checks, and proficiency checks until the coughing stops. A slow, poison, neutralize poison, or cure disease applied during this time dispels the coughing fit and prevents the infection that would (otherwise follow. Victims who stop coughing without benefit of healing magic have incorporated the mold wyrm spores into their own bodies. This infection suspends all natural healing and causes victims to become ravenous. If they do not eat double their normal rations each day, they begin to waste away, losing 10% of their original hit points each day. Though slow poison, neutralize poison, or cure disease can remove the affliction instantly, infected characters become very protective of the "warmth" they feel growing within, refusing all magical healing and escaping at the earliest opportunity from any companions who try to cure them. After ld6+6 days of infection, the victim's skin sloughs away, revealing a gelatinous mass of grayish mold that has replaced his or her internal organs. This goo splashes down like a column of viscous water to form a scaly mold layer covering a 30-foot-diameter area. The victim is now a brand-new mold wyrm with one-fourth of such a creature's normal Hit Dice. The new wyrm must rest for 8 hours before it can assume its active form.
Even with a successful saving throw against the spore cough, any creature within the spore cloud's area of effect breathes in a whiff of the disruptive spores and coughs violently, suffering the same damage and action penalty as those who failed their saving throws, but for only 1 round. They do not, however, become infected with spores. Vegetable- and fungus-based creatures (such as fungus hulks) that fail their saving throws suffer 1d10 points of damage from invading spores, but no infection.