A shambling, bipedal fungus birthed in soft cocoons.

The guards lower the cocoon into the ash and exit the arena. A few moments after they leave, it bursts open. A humanoid figure emerges and staggers toward you. - Tome of Encounters (RPA-SQ1)

Fungoids can spray toxic spores from their bodies in self-defense;

As you strike a particularly fierce blow against the creature, it emits a flurry of spores. - Tome of Encounters (RPA-SQ1)

The physiology of a Fungoid appears to be that of pure flesh;

Deep cuts in its hide reveal no organs within, only spongy white flesh like a mushroom. - Tome of Encounters (RPA-SQ1)

A mysterious cocoon is brought out to you at the Colosseum of Ashes;

• Allow it to hatch and fight whatever comes out.
  • Slay it and it is reduced to a lifeless heap, another win for your run.
  • It bites you and is then carried off by a large guard.
• Fight the guards off and kill whatever is inside to the excitement of the crowd;

You manage to chase the guards from the arena. Once they’re gone, you drive your weapon into the cocoon and hear a soft scream from within. Green ooze spills from its soft shell into the black ash, and the cocoon slowly dissolves. - Tome of Encounters (RPA-SQ1)

A Fungoid fights with Vrax in Hoshek, Plane of Life, at the final battle of Brizoor Waal.

The completed Lord of Rot also summons numerous Fungoids in its wake.