Undead Fortitude. If damage reduces the zombira to 0 Hit Points, it makes a Constitution saving throw (DC 5 plus the damage taken) unless the damage is Radiant or from a Critical Hit. On a successful save, the zombira drops to 1 Hit Point instead.

Night Form. At night, its Strength and AC increase by one.

Blood Frenzy. The zombira has advantage on melee attack rolls against creatures that don't have all their hit points.

Hold Breath. The zombira can hold its breath for 3 hours.

Turn Immunity. The zombira is immune to effects that turn undead.

Slam. Melee Attack Roll: +3, reach 5 ft. Hit: 5 (1d8 + 1) Bludgeoning damage.

Sword of the Undead. Melee Attack, Reach 5 ft., 1D8 Necrotic Damage + 1 Poison damage

Bow of Demons. Ranged Attack, Range 30-50 ft., same damage as Sword of the Undead.