Clockwork Zombie

Shutdown. If targeted by dispel magic, the zombie must succeed on a Constitution saving throw against the caster’s spell save DC or be stunned for 1 minute or until it takes any damage.

Undead Fortitude. If damage reduces the zombie to 0 hit points, it must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, the zombie drops to 1 hit point instead.

Trapped Soul. The clockwork zombie still contains their trapped soul from when they were alive. This is drawn upon to power the clockwork mechanics. Upon taking damage the clockwork zombie must make a Wisdom saving throw of DC 10 or become frightened until the end of its next turn as the soul becomes aware of its situation. While the soul is aware it may cry out warnings of its maker, beg for death's release, or plead to be restored to life. Creatures that can see or hear the clockwork zombie must make a Wisdom saving throw of DC 12 or become  frightened.

Multiattack. The horror makes one Bite attack and two Rotating Pickaxe attacks, or it makes two Lightning Jolt attacks.

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2) piercing damage. If the target is a creature, it must succeed on a DC 12 Constitution saving throw or be inflicted with zombie plague. The diseased target can't regain hit points, and its hit point maximum decreases by 10 (3d6) for every 24 hours that elapse. If the disease reduces the target's hit point maximum to 0, the target dies, and its body will rise as a zombie in 1d4 hours. Spells and abilities that remove diseases cure zombie plague.  Gentle repose will prevent the body from rising as a zombie.

Rotating Pickaxe. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 2) piercing damage.

Lightning Jolt. Ranged Spell Attack: +4 to hit, range 120 ft., one target. Hit: 7 (1d10 + 2) lightning damage.