Plague Zombie (5e Creature)
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Medium undead, neutral evil
Saving Throws Wis +0
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.
Slam. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage, plus 5 (2d4) necrotic damage. A humanoid slain by this attack rises as a zombie 24 hours later, unless the humanoid is restored to life or its body is destroyed.
Some zombies possess the ability to spread their undeath like a disease. These zombies are prized by necromancers, as a single plague zombie can cause an army of undead to swell without greatly increased input on their creator's part.
Undead Nature. A plague zombie doesn't require air, food, drink, or sleep.