Cordycep Hag

Innate Spellcasting. The hag's innate spellcasting ability is Charisma (spell save DC 14). She can innately cast the following spells, requiring no material components:

At will: Spike Growth, Infestation

3/ day each: Contagion, Giant Insect, Wall of Thorns

1/ day each; Earthquake

Spore Burst. When the Cordycep Hag is reduced to 0 hit points it bursts and released a cloud of red spores. Each creature within 5 feet of it must make a DC 12 Constitution saving throw, taking 10 (3d6) poison damage and become infected with the disease Flesh Rot on a failed save. While infected, the creature's flesh decays, they have disadvantage on Charisma checks and vulnerability to all damage.

Claws. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) slashing damage and 3(1d6) poison damage. A creature hit by this attack must succeed a DC 12 constitution saving throw or be infected with Flesh Rot.

Invisible Passage. The hag magically turns invisible until she attacks or casts a spell, or until her concentration ends (as if concentrating on a spell). While invisible, she leaves no physical evidence of her passage, so she can be tracked only by magic. Any equipment she wears or carries is invisible with her.

Infect. The hag delivers spores to a medium size corpse within 5 feet of her that hasn't been previously infected with cordyceps fungus. The hag decides if corpse is raised as a Cordycep Walker or Cordycep Rainmaker. The chosen creature convulses as mushrooms spring from the corpse and rises with new plant life.