I'd say the 1d8 initial damage stacks, while the continual 1d4 only uses the worst amount rolled each round as the spores compete with one another for growing space on the victim.AuraSeer said:
I have absolutely no evidence that this is how it's supposed to work. I just think the ability would otherwise be a bit strong for the CR. (Two or three vrocks would be extremely nasty to a party that had not eaten their heroes' feast recently enough.)
Heroes feast and other means of poison immunity and disease immunity do not stop vrock spores. The spores {IMO a parasite*] have notable vulnerabilty to the listed spells, but the spells have to be cast on the spores. Buffing up won't help, being a paladin won't Help, being a Demon won't help, casting one of those spells onto the growing spores will help.*Parasites don't come up as often as they used to in D&D. Thankfully Cure Disease notes them and specifies the spell kills them in addition to curing diseases.
Remove Disease
Conjuration (Healing)
Level: Clr 3, Drd 3, Rgr 3
Components: V, S
Casting Time: 1 standard action
Range: Touch
Target: Creature touched
Duration: Instantaneous
Saving Throw: Fortitude negates (harmless)
Spell Resistance: Yes (harmless)
Remove disease cures all diseases that the subject is suffering from. The spell also kills parasites, including green slime and others. Certain special diseases may not be countered by this spell or may be countered only by a caster of a certain level or higher.
Note: Since the spell’s duration is instantaneous, it does not prevent reinfection after a new exposure to the same disease at a later date.
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