There is a Legacy version
here.

Cyth-V’sug (Prince of the Blasted Heath)Source Divine Mysteries pg. 304Cyth-V’sug, Prince of the Blasted Heath, is the
demon lord of disease, fungus, and parasites. Originally a
qlippoth lord, he was exiled by his peers for accepting mortal worshippers. Transformed into one of the
demons he despises, Cyth-V’sug seeks to devour all life to put an end to demons and, ultimately, himself. He most often appears as an enormous
draconic figure of snarled vines, fungal growths, and flailing tentacles. Cyth-V’sug is most often worshipped by recluses who seek to bring decay and destruction to their environs, though denizens of
the Darklands also pay homage to him.
Category Demon LordsEdicts Corrupt all that exists with parasites or fungus, promote the growth of fungus, feast on rotten flesh or fungus
Anathema Purify your food, cure a disease or kill a parasite, tolerate another demon lord or their servants (except
Treerazer)
Areas of Concern Disease, fungus, parasites
Religious Symbol Moldy spiraling tentacle
Sacred Animal Centipede
Sacred Color(s) Green, yellow
Devotee Benefits
Divine Attribute Constitution or Wisdom
Divine Font harm or
healDivine Sanctification must choose unholy
Divine Skill NatureFavored Weapon scimitarDomains change,
decay,
nature,
plagueAlternate Domains nothingnessCleric Spells 1st:
summon plant or fungus, 2nd:
fungal hyphae, 5th:
plant form