Necrotic Fungus

The Fungal Infection that’s consuming the Weald stands revealed, a disgusting fungal growth designed to nourish the Weald's blight and spread corruption, these fungi are fruit of the Hag's twisted and vile research. These malignant mushrooms are cared for by the Daughters of the Hag, taking the bodies of the dead and repurposing them into vessels of decay. This causes accelerated putrefaction of the body and the land, steadily releasing spores that cause wounds to fester, death to flourish and turn life into rot.

Behaviour
The Necrotic Fungus is spawned from an enemy's corpse by a Hateful Virago's "From Death Comes Life" ability. She will use this automatically at the end of any round there is an available corpse, consuming that corpse and replacing it one of these wicked weeds.

On its own, the Necrotic Fungus does absolutely nothing except take up space. It has no attacks, it does not move, and though it's somewhat durable, it has no defense whatsoever. However, despite this, it's a monumental threat to the party - so long as a Necrotic Fungus is on the field, its corrupting spores completely block healing effects, shown by all heroes having a special debuff icon on them. Because the Virago herself is quite potent a combatant, and often brings along friends she can buff to impressive levels, the presence of a Necrotic Fungus can result in a deadly cycle where heroes are unable to get off Death's Door, making it much more likely that you'll lose a party member. Take them out immediately, or you may not live to regret it!