A purple to gray fungus that resembles a shrieker, attacks with poisonous tentacles

A Violet Fungus resembles a shrieker, and is often found growing among them. Its coloration ranges from purple to gray. In combat, a violet fungus flails about with its tentacles at any living creatures that come within its reach. The attacks of the fungus are poisonous; any creature hit must save vs. Poison or lose one point of Constitution. Any character reduced to zero Constitution dies. Constitution points lost to this poison will be regained at a rate of one per day.