Fey Ancestry. The shaman has advantage on saving throws against being charmed, and magic can't put it to sleep.

Spellcasting. The shaman is an 8th-level Golgari spellcaster. Its spellcasting ability is Wisdom (spell save DC 14, +6 to hit with spell attacks). The shaman has the following druid spells prepared:

Cantrips (at will): poison spray, shillelagh, thorn whip

1st level (4 slots): cure wounds, entangle, ray of sickness

2nd level (3 slots): pass without trace, ray of enfeeblement, spike growth

3rd level (3 slots): animate dead, dispel magic, plant growth

4th level (2 slots): blight, giant insect

Quarterstaff. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit:5 (1d6 + 2) bludgeoning damage, or 6 (1d8 + 2) bludgeoning damage if used with two hands.

Fungal Rot. Melee Spell Attack: +6 to hit, reach 5 ft., one target. Hit:9 (2d8) necrotic damage, and the target must make a DC 14 Constitution saving throw, taking 18 (4d8) poison damage on a failed save, or half as much damage on a successful one.

Feed on Death. When a creature within 30 feet of the shaman drops to 0 hit points, the shaman gains 5 (1d10) temporary hit points.